US2503141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: GEROTOR MAY Corp
•
Filing: 1946-11-12
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Granted: 1950-04-04
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Expires: 1966-11-12
Abstract
No abstract record available.
Inventors
- 👤 Stone Albert Rivington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:24
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/16; F; F16; F16B; F16B31/00; F16B31/02; F16B31/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1040586A
Cited
US2003910A
Cited
US2170197A
Cited
DE624801C
Cited
US2061261A
Cited
US2033417A
Cited
US2094319A
Cited
US2170640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |