US2720130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lathes with complex tool movement
Assignee: Robbias & Myers Inc
•
Filing: 1952-03-22
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Granted: 1955-10-11
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Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 Sheldon S L Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:06
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/18; B23Q2735/00; B23Q2735/02; B23Q2735/08; B23Q2735/082; Y; Y10; Y10T; Y10T82/00; Y10T82/13; Y10T82/135; Y10T82/14; Y10T82/141; Y10T82/25; Y10T82/2531; Y10T82/2533
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1289674A
Cited
US1350735A
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US1502474A
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US1865528A
Cited
US1950332A
Cited
US2168633A
Cited
US2423941A
Cited
US2566116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |