Patent US2723342A successfully refreshed from Google Patents.
US2723342A
Expired / Lapsed
US
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Instrument lighting devices
Assignee: Individual
•
Filing: 1951-11-26
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Granted: 1955-11-08
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Expires: 1971-11-26
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Neugass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:53
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0081; G02B6/0086; G02B6/0091; G01; G01D; G01D11/00; G01D11/28; G12; G12B; G12B11/00; G12B11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB236863A
Cited
GB492258A
Cited
US2150836A
Cited
US2128246A
Cited
US2220861A
Cited
FR884319A
Cited
US2531945A
Cited
US2518726A
Cited
US2602036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |