Patent US2930130A successfully refreshed from Google Patents.
US2930130A
Expired / Lapsed
US
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Optical lens scriber
Assignee: Individual
•
Filing: 1957-03-22
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Granted: 1960-03-29
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Expires: 1977-03-22
Abstract
No abstract record available.
Inventors
- 👤 Sylvan E Ray
- 👤 Maury L Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:39
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/005; B24B13/0055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1931477A
Cited
US2042565A
Cited
US2166037A
Cited
US2604697A
Cited
US2522818A
Cited
US2765523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |