US2699491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamp holder
Assignee: Individual
•
Filing: 1950-05-03
•
Granted: 1955-01-11
•
Expires: 1970-05-03
Abstract
No abstract record available.
Inventors
- 👤 Chester J Sternaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:59
CPC Classifications
F; F21; F21V; F21V31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2305934A
Cited
US2286448A
Cited
US2357322A
Cited
US2380396A
Cited
US2562064A
Cited
US2511937A
Cited
US2509460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |