US3067601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoflash lamp
Assignee: GTE Sylvania Inc
•
Filing: 1960-09-29
•
Granted: 1962-12-11
•
Expires: 1980-09-29
Abstract
No abstract record available.
Inventors
- 👤 Lester F Anderson
- 👤 William C Fink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:59
CPC Classifications
F; F21; F21K; F21K5/00; F21K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A PHOTOFLASH LAMP COMPRISING: A SEALED LIGHT-TRANSMITTING ENVELOPE; A COMBUSTIION-SUPPORTING GAS FILLING IN SAID ENVELOPE AT A PRESSURE ABOVE ATMOSPHERIC, THE QUANTITY OF SAID GAS BEING AT LEAST ABOUT 2 MGS. PER CC. OF EN-
Claim 2
Dependent Claim
35 words
A PHOTOFLASH LAMP COMPRISING: A SEALED LIGHT-TRANSMITTING ENVELOPE; A COMBUSTIION-SUPPORTING GAS FILLING IN SAID ENVELOPE AT A PRESSURE ABOVE ATMOSPHERIC, THE QUANTITY OF SAID GAS BEING AT LEAST ABOUT 2 MGS. PER CC. OF EN-
References Cited (Backward Citations)
USRE18678E
Cited
US2272059A
Cited
US2272779A
Cited
US2315099A
Cited
US2810283A
Cited
US2865186A
Cited
US2813411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |