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US2541376A
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Assignee: PRODUCTION INSTR Co
•
Filing: 1946-11-01
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Granted: 1951-02-13
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Expires: 1966-11-01
Abstract
No abstract record available.
Inventors
- 👤 Martin L Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:23
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/12; H01H13/14; H01H13/18; Y; Y10; Y10S; Y10S198/00; Y10S198/958
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1627732A
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US1767636A
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US1971971A
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US2069171A
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US2208432A
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US2248676A
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US2267387A
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US2310791A
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US2355951A
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US2357973A
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US2338365A
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US2451176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |