Patent US4733337A successfully refreshed from Google Patents.
Patent US2886335A successfully refreshed from Google Patents.
US2886335A
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Vacuum chuck assembly
Assignee: Corning Glass Works
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Filing: 1956-10-01
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Granted: 1959-05-12
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Expires: 1976-10-01
Abstract
No abstract record available.
Inventors
- 👤 George E Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:03
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/24; H01J9/26; H01J9/263; B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/307; C; C03; C03B; C03B23/00; C03B23/0093; C03B23/04; C03B23/045; C03B23/20; C03B23/207; C03B23/217; H01J5/00; H01J5/20; H01J5/22; H01J5/24; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0038; H01J2893/0039; Y; Y10; Y10T; Y10T279/00; Y10T279/11
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |