Patent US2948923A successfully refreshed from Google Patents.
US2948923A
Expired / Lapsed
US
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High pressure, explosive-activated press
Assignee: Individual
•
Filing: 1958-06-04
•
Granted: 1960-08-16
•
Expires: 1978-06-04
Abstract
No abstract record available.
Inventors
- 👤 Rocca Edward W La
- 👤 Pearson John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:39
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/001; Y; Y10; Y10S; Y10S100/00; Y10S100/911
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US778899A
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US2149641A
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US2132148A
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US2253003A
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US2472120A
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US2648125A
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US2815698A
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US2905080A
Cited
US2872682A
Cited
US2893279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |