US2984137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary shear blades mounted coaxially and having independent drive means
Assignee: Siemens Industry Inc
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Filing: 1959-11-13
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Granted: 1961-05-16
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Expires: 1979-11-13
Abstract
No abstract record available.
Inventors
- 👤 Norman A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:51
CPC Classifications
B; B23; B23D; B23D25/00; B23D25/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19084; Y10T83/00; Y10T83/465; Y10T83/4705; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4836; Y10T83/869; Y10T83/8727; Y10T83/8759
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |