US2816995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push button switch with double switch mechanism
Assignee: Marco Industries Co
•
Filing: 1956-04-03
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Granted: 1957-12-17
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Expires: 1976-04-03
Abstract
No abstract record available.
Inventors
- 👤 Frank A Harrington
- 👤 Thomas W Jentges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:05
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |