Patent US2932133A successfully refreshed from Google Patents.
US2932133A
Expired / Lapsed
US
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Work forming apparatus and method
Assignee: Individual
•
Filing: 1957-02-21
•
Granted: 1960-04-12
•
Expires: 1977-02-21
Abstract
No abstract record available.
Inventors
- 👤 Armitage Harry James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:59
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/34; B24B3/343; Y; Y10; Y10S; Y10S451/00; Y10S451/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1647130A
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US1837821A
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US1694560A
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US2324608A
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US2371515A
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US2470530A
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US2455024A
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US2494938A
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US2626491A
Cited
US2650458A
Cited
US2786312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |