US2791920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load operating device with automatic disconnecting mechanism
Assignee: General Controls Co
•
Filing: 1952-08-16
•
Granted: 1957-05-14
•
Expires: 1972-08-16
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:28
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1325010A
Cited
US1330790A
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US1723327A
Cited
US1699653A
Cited
US1847867A
Cited
US2205235A
Cited
US2484364A
Cited
US2547475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |