US3178569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp structure
Assignee: Individual
•
Filing: 1961-06-09
•
Granted: 1965-04-13
•
Expires: 1981-06-09
Abstract
No abstract record available.
Inventors
- 👤 William B Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:46
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/03; F21S8/033; F21S8/04; F21S8/06; F21V; F21V1/00; F21W; F21W2121/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A LAMP COMPRISING, A VOLUME SURROUNDING SHEET BOUNDED BY A PERIMETER FORMED BY A PLURALITY OF CONTIGOUS CURVES, SAID SHEET BEING FORMED WITH AT LEAST TWO SPACED POINTS THEREON, MEANS FOR SUPPORTING AND DELIVERING ELECTRICAL ENERGY TO ALIGHT SOURCE POSITIONED TO MAIN TAIN OPEN BOTH ENDS OF THE VOLUME SURROUNDED BY SAID SHEET, AND MEANS FOR MAINTAINING SAID SHEET SURROUNDING SAID VOLUME AND SAID SUPPORTING MEANS WITH SAID POINTS IN ADJACENT OVERLAPPING RELATIONSHIP, AN INSIDE SURFACE PORTION OF SAID SHEET FACING SAID SOURCE POSITIONED FOR REFLECTING LIGHT FROM SAID SOURCE TO AN OUTSIDE SURFACE PORTION OF SAID SHEET THAT FACES AWAY FROM SAID SOURCE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |