Patent US3159446A successfully refreshed from Google Patents.
US3159446A
Expired / Lapsed
US
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Pilferproof wall plate
Assignee: General Time Corp
•
Filing: 1961-11-13
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Granted: 1964-12-01
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Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 Donald E Protzmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:14
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/62; H01R13/639; H01R13/6395
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US131843A
Cited
US2462756A
Cited
US2709198A
Cited
US2891102A
Cited
US2934591A
Cited
US2987690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |