Patent US2895739A successfully refreshed from Google Patents.
US2895739A
Expired / Lapsed
US
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Vacuum chucks
Assignee: OI Glass Inc
•
Filing: 1956-02-13
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Granted: 1959-07-21
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Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/307; Y; Y10; Y10T; Y10T279/00; Y10T279/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1275447A
Cited
US2203917A
Cited
GB536858A
Cited
US2372516A
Cited
US2512274A
Cited
US2807180A
Cited
US2796313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |