US2995660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detector
Assignee: GTE Sylvania Inc
•
Filing: 1956-09-28
•
Granted: 1961-08-08
•
Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Lempicki Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:47
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; C; C09; C09K; C09K11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB661162A
Cited
GB685027A
Cited
US2739244A
Cited
US2706792A
Cited
US2692950A
Cited
US2861903A
Cited
US2773992A
Cited
US2794926A
Cited
US2765385A
Cited
US2899560A
Cited
US2879182A
Cited
US2961542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |