US2966729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for accomplishing one side expansion in pressure welded passageway panels
Assignee: Reynolds Metals Co
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Filing: 1956-05-31
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Granted: 1961-01-03
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Expires: 1976-05-31
Abstract
No abstract record available.
Inventors
- 👤 John H Dedrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:53
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; Y10T29/49371; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1926320A
Cited
US2140710A
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US2406844A
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US2655716A
Cited
US2690002A
Cited
US2766514A
Cited
US2723449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |