Patent US3268722A successfully refreshed from Google Patents.
US3268722A
Expired / Lapsed
US
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Cover structure for lighting fixtures
Assignee: Individual
•
Filing: 1963-09-30
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Granted: 1966-08-23
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Nolan James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:15
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21V17/16; F21V17/164; F21S; F21S8/00; F21S8/02; F21V3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1151571A
Cited
US2309792A
Cited
US2638191A
Cited
US2799058A
Cited
US2741348A
Cited
US2857633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |