Patent US1408746A successfully refreshed from Google Patents.
Patent US2705371A successfully refreshed from Google Patents.
US2705371A
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Sight line stabilizing device
Assignee: Unisys Corp
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Filing: 1946-03-22
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Granted: 1955-04-05
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Expires: 1966-03-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Edmund B Hammond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:49
CPC Classifications
F; F41; F41G; F41G5/00; F41G5/14; F41G5/16; G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/18; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1218; Y10T74/20; Y10T74/20207; Y10T74/20366
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1688559A
Cited
US1936442A
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US1937336A
Cited
US2437463A
Cited
US2408356A
Cited
US2222551A
Cited
US2371606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |