Patent US2828238A successfully refreshed from Google Patents.
US2828238A
Expired / Lapsed
US
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Process of manufacturing expansible sealing rings
Assignee: International Motors LLC
•
Filing: 1955-10-18
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Granted: 1958-03-25
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Expires: 1975-10-18
Abstract
No abstract record available.
Inventors
- 👤 Arnold F Batson
- 👤 Jerome J Mestdagh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:48
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0053; B04; B04B; B04B1/00; B04B1/10; B04B1/14; B04B1/16; B04B15/00; B04B15/06; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/26; Y; Y10; Y10S; Y10S277/00; Y10S277/922; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1031515A
Cited
US1209644A
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US1492363A
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US1586737A
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US1828925A
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US2482570A
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US2676823A
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US2670313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |