US3117178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical polygons
Assignee: LS Starrett Co
•
Filing: 1959-11-03
•
Granted: 1964-01-07
•
Expires: 1979-11-03
Abstract
No abstract record available.
Inventors
- 👤 George D Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:26
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/26; G02; G02B; G02B5/00; G02B5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1105895A
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US1430316A
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US1869512A
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US2060351A
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GB568936A
Cited
US2437807A
Cited
US2546524A
Cited
US2619008A
Cited
US2909204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |