Patent US2982012A successfully refreshed from Google Patents.
US2982012A
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Strip material having expansible slits
Assignee: Revere Copper and Brass Inc
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Filing: 1955-07-21
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Granted: 1961-05-02
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Expires: 1975-07-21
Abstract
No abstract record available.
Inventors
- 👤 Richard A Wilkins
- 👤 Martin H Dubilier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:13
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49369; Y10T29/49805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US29276A
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US377318A
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US726026A
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DE401476C
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US2039040A
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US2333343A
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US2375334A
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US2498275A
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US2690002A
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |