Patent US3511956A successfully refreshed from Google Patents.
US3511956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switch housing
Assignee: Dynamics Corp of America
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Filing: 1968-03-14
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Granted: 1970-05-12
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Expires: 1988-03-14
Abstract
No abstract record available.
Inventors
- 👤 Albert F Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:05
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/08; H01H3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2652470A
Cited
US2706774A
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US3242298A
Cited
US3367206A
Cited
US3304398A
Cited
US3309487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |