Patent US2705902A successfully refreshed from Google Patents.
US2705902A
Expired / Lapsed
US
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Light-beam projection indicating instrument
Assignee: General Electric Co
•
Filing: 1953-08-26
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Granted: 1955-04-12
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Expires: 1973-08-26
Abstract
No abstract record available.
Inventors
- 👤 John S Blowney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:09
CPC Classifications
A; A41; A41H; A41H23/00; G; G01; G01D; G01D7/00; G01D7/02; G01D7/04; G01D7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1939161A
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US1925814A
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US1981999A
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US1977027A
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US2305775A
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US2256595A
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US2286737A
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US2290278A
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US2471800A
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US2417392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-11 | 1958-10-11 | 1959-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-11 | 1962-10-11 | 1963-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-11 | 1966-10-11 | 1967-04-12 | $7700.00 | Window Closed / Lapsed |