US3477574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: CLAUDE BOIVIN
•
Filing: 1968-07-22
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Granted: 1969-11-11
•
Expires: 1988-07-22
Abstract
No abstract record available.
Inventors
- 👤 Remy Malfroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:02
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46; B07B1/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1906603A
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US2197489A
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US2287667A
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US2375603A
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US2727463A
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US2808880A
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US2848108A
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US2897889A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |