Patent US2834394A successfully refreshed from Google Patents.
US2834394A
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US
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Apparatus for assembling and bonding together mastic washers and nutwashers
Assignee: American Marietta Co
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Filing: 1956-08-02
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Granted: 1958-05-13
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Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 Fred J Sharn
- 👤 Arthur H Boundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:32
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; B23P19/08; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B21D51/446; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1768; Y10T29/00; Y10T29/53; Y10T29/53313; Y10T29/53365; Y10T29/53383; Y10T29/53387
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1493480A
Cited
US2155958A
Cited
US2251434A
Cited
US2333940A
Cited
GB603911A
Cited
US2604692A
Cited
US2747648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |