US2884713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power and time board
Assignee: Individual
•
Filing: 1955-08-15
•
Granted: 1959-05-05
•
Expires: 1975-08-15
Abstract
No abstract record available.
Inventors
- 👤 Campbell James Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:31
CPC Classifications
G; G07; G07C; G07C3/00; G07C3/08; G07C3/12; G09; G09D; G09D1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563512A
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US2732822A
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US834447A
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US1408469A
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US1354910A
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US2043760A
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US2234249A
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US2629184A
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US2544445A
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US2548657A
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US2622346A
Cited
US2647328A
Cited
US2642832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |