Patent US1998132A successfully refreshed from Google Patents.
US1998132A
Expired / Lapsed
US
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Means for controlling machines
Assignee: Radio Patents Corp
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Filing: 1930-07-25
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Granted: 1935-04-16
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Expires: 1950-07-25
Abstract
No abstract record available.
Inventors
- 👤 Geffcken Heinrich Hermann
- 👤 Richter Hans Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:55
CPC Classifications
G; G06; G06M; G06M7/00; G06M7/02; G06M7/06; G06M1/00; G06M1/08; G06M1/10; G06M1/101
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) | 1938-04-15 | 1938-10-15 | 1939-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-15 | 1942-10-15 | 1943-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-15 | 1946-10-15 | 1947-04-16 | $7700.00 | Window Closed / Lapsed |