US3527530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: General Electric Co
•
Filing: 1967-01-12
•
Granted: 1970-09-08
•
Expires: 1987-01-12
Abstract
No abstract record available.
Inventors
- 👤 Robert L Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:10
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/04; G03B23/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR340931A
Cited
US1099431A
Cited
US2849814A
Cited
US3001445A
Cited
US3015251A
Cited
US3284937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |