Patent US2711031A successfully refreshed from Google Patents.
US2711031A
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US
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Lithographic step and repeat system
Assignee: Individual
•
Filing: 1952-05-06
•
Granted: 1955-06-21
•
Expires: 1972-05-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry C Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:06
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/20; G03F7/22; Y; Y10; Y10S; Y10S101/00; Y10S101/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US365938A
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US1975181A
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US2011584A
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US2099364A
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US2399610A
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US2387986A
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US2465227A
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US2565608A
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US2499100A
Cited
US2466919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |