Patent US3513802A successfully refreshed from Google Patents.
US3513802A
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US
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Apparatus for and method of indicating progressive failure of keyed connection
Assignee: Allis Chalmers Corp
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Filing: 1967-11-20
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Granted: 1970-05-26
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Expires: 1987-11-20
Abstract
No abstract record available.
Inventors
- 👤 Roderick B Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:13
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/0018; F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0876; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/945; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7021; Y10T403/7024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1119613A
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US1167690A
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US2081757A
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US2228770A
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US2317070A
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US2568109A
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US2772650A
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US3190383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |