What this patent covers
A design patent covering the ornamental appearance of a fire alarm, shown in top perspective with plan views from above and below and two separate side views.
US D644,547 is a design patent titled “Fire alarm”, invented by Michael J. Knowles.
The application was filed on August 31, 2010 and granted on September 6, 2011, 1 year later. The specification refers to 7 drawing figures.
It is one of the patents our firm has obtained in the Design — Electronics & Electrical area.
Key dates and patent term
| Application filed | August 31, 2010 | |
|---|---|---|
| Patent granted | September 6, 2011 | 1 year in prosecution at the U.S. Patent Office |
| Design term expires (nominal) | September 6, 2025 | 15 years from grant; design patents carry no maintenance fees. |
The expiration date is calculated from the grant and filing dates on the face of the patent. The actual date may vary based on patent-term adjustment (patent office delay), or terminal disclaimer (agreeing to a shorter term). This website is for information purposes only and is not legal advice.
Bibliographic details
| Patent number | US D644,547 |
|---|---|
| Title | Fire alarm |
| Inventors | Michael J. Knowles |
| Assignee | Individual |
| Filing date | August 31, 2010 |
| Grant date | September 6, 2011 |
| Category | Design — Electronics & Electrical |
Full text as published by the U.S. Patent Office
The sections below reproduce the official text of US D644,547 for reference. Open a section to read it.
Claims
Claims ( 1 )
The ornamental design for a fire alarm, as shown and described.
Description
FIG. 1 shows a top perspective view of the fire alarm.
FIG. 2 shows a top plain view of the fire alarm.
FIG. 3 shows a bottom plain view of the fire alarm.
FIG. 4 shows a first side view of the fire alarm.
FIG. 5 shows a second side view of the fire alarm.
FIG. 6 shows a third side view of the fire alarm; and,
FIG. 7 shows a fourth side view of the fire alarm.
US D644,547: questions and answers
What is US Patent D644,547 about?
US D644,547, “Fire alarm”, is a design patent granted by the United States Patent and Trademark Office on September 6, 2011.
Who invented US Patent D644,547?
The named inventor is Michael J. Knowles.
When was US Patent D644,547 filed?
The application was filed on August 31, 2010 and the patent granted on September 6, 2011.
When does US Patent D644,547 expire?
The nominal expiration date is September 6, 2025. 15 years from grant; design patents carry no maintenance fees.
Who was the patent attorney for US Patent D644,547?
This patent was prosecuted by Feigin & Fridman, LLC, patent attorneys in New York and New Jersey. Contact us to discuss protecting your own invention.
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