US3421350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective cover for a keyhole assembly
Assignee: GLASS LAB CO
•
Filing: 1967-02-02
•
Granted: 1969-01-14
•
Expires: 1987-02-02
Abstract
No abstract record available.
Inventors
- 👤 Victor Shanok
- 👤 Jesse P Shanok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 07:11
CPC Classifications
E; E05; E05B; E05B77/00; E05B77/34; Y; Y10; Y10T; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8649
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB351049A
Cited
US2672257A
Cited
US2639751A
Cited
US2659169A
Cited
US2904985A
Cited
US3043289A
Cited
US3086268A
Cited
US3300239A
Cited
US3288511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |