US2435320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eyeglass lens grinding apparatus
Assignee: Super Cut Inc
•
Filing: 1946-05-01
•
Granted: 1948-02-03
•
Expires: 1966-05-01
Abstract
No abstract record available.
Inventors
- 👤 Leopold H Metzger
- 👤 Wilson B Muse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:21
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317455A
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US1040258A
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US1125147A
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US1353043A
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US1659277A
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US1718279A
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US1761181A
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US2354347A
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US2291629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |