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Patent US3535729A successfully refreshed from Google Patents.
US3535729A
Expired / Lapsed
US
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Polishing buff
Assignee: Boeing North American Inc
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Filing: 1968-05-03
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Granted: 1970-10-27
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Expires: 1988-05-03
Abstract
No abstract record available.
Inventors
- 👤 Albert T Gervais
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:55
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/08; B24D11/00; B24D11/001; B24D11/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US911889A
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US2085142A
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US2244582A
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US2331583A
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US2334572A
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US2413146A
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US2493791A
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US2642706A
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GB985756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |