US2866429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-automatic apparatus for expanding a pressure welded passageway panel
Assignee: Reynolds Metals Co
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Filing: 1955-12-09
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Granted: 1958-12-30
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Expires: 1975-12-09
Abstract
No abstract record available.
Inventors
- 👤 Paul R Staples
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:45
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
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1891121A
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US2241807A
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US2317869A
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US2398227A
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US2582358A
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US2690002A
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US2625195A
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US2766711A
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US2713314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |