US3006064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for repairing worn surfaces in shafts
Assignee: Individual
•
Filing: 1958-08-22
•
Granted: 1961-10-31
•
Expires: 1978-08-22
Abstract
No abstract record available.
Inventors
- 👤 Ralph O Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:32
CPC Classifications
B; B23; B23K; B23K31/00; B23K31/02; B23K31/025; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T29/49734; Y10T29/49737; Y10T29/49742; Y10T29/49826; Y10T29/49863; Y10T29/49874; Y10T29/49881
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1357739A
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US1374624A
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US1722025A
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US1884104A
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US1947493A
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FR838972A
Cited
US2210353A
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US2182238A
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US2373038A
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US2410850A
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US2463580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |