US2873358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor-tight lamp fixture
Assignee: Ajem Laboratories Inc
•
Filing: 1953-11-20
•
Granted: 1959-02-10
•
Expires: 1973-11-20
Abstract
No abstract record available.
Inventors
- 👤 Dunker Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:50
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/02; F21V; F21V17/00; F21V17/10; F21V17/107; F21V17/18; F21V23/00; F21V23/003; F21V23/007; F21V23/008; F21V23/02; F21V31/00; F21V31/005; F21Y; F21Y2103/00; F21Y2113/00; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1903087A
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US2122130A
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US2257232A
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US2268731A
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US2291495A
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US2413666A
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US2477957A
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US2481531A
Cited
US2555089A
Cited
GB634014A
Cited
US2593513A
Cited
US2678380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |