Patent US2936636A successfully refreshed from Google Patents.
US2936636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press
Assignee: Individual
•
Filing: 1958-05-02
•
Granted: 1960-05-17
•
Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Wacht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:53
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/10; B30B1/16; F; F15; F15B; F15B15/00; F15B15/08; F15B15/12; F15B15/125; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32951; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/18952
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US126576A
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US170179A
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US248524A
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US299161A
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US413264A
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US1006157A
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US1155543A
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US1332576A
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US1337817A
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US2342396A
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US2408379A
Cited
US2540903A
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US2780830A
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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) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |