US2329630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure meter
Assignee: RAY L TRIPLETT
•
Filing: 1941-05-26
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Granted: 1943-09-14
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Expires: 1961-05-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Lingel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:48
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/42; G01J1/4209; G01J1/4214
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-09-13 | 1947-03-15 | 1947-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-13 | 1951-03-15 | 1951-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-13 | 1955-03-15 | 1955-09-14 | $7700.00 | Window Closed / Lapsed |