US2893459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power brake having work supporting platen with heating means for work
Assignee: Lockheed Martin Corp
•
Filing: 1954-10-21
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Granted: 1959-07-07
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Expires: 1974-10-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Kosek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:13
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/02; B21D37/00; B21D37/16; B21D5/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US305707A
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US381175A
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US1433879A
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US1409689A
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US1895401A
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US2303059A
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US2491717A
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US2689400A
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US2692421A
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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) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |