Patent US319569A successfully refreshed from Google Patents.
US2981816A
Expired / Lapsed
US
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Push button assembly
Assignee: Individual
•
Filing: 1957-07-25
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Granted: 1961-04-25
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Expires: 1977-07-25
Abstract
No abstract record available.
Inventors
- 👤 Robert T Cozart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:09
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H01H3/00; H01H3/60; H02; H02B; H02B1/00; H02B1/015; H02B1/04; H02B1/044; H01H2221/00; H01H2221/036; H01H2221/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2204873A
Cited
US2452067A
Cited
US2531130A
Cited
US2684411A
Cited
US2740023A
Cited
US2853585A
Cited
US2813945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |