Patent US2942345A successfully refreshed from Google Patents.
US2942345A
Expired / Lapsed
US
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Graticule holding devices
Assignee: Individual
•
Filing: 1955-08-31
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Granted: 1960-06-28
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Expires: 1975-08-31
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:01
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US618161A
Cited
GB191128194A
Cited
DE428618C
Cited
US2511975A
Cited
US2302444A
Cited
US2458831A
Cited
US2496045A
Cited
US2682804A
Cited
US2690015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |