US3479648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording method and apparatus
Assignee: Whittaker Corp
•
Filing: 1966-07-11
•
Granted: 1969-11-18
•
Expires: 1986-07-11
Abstract
No abstract record available.
Inventors
- 👤 Marvin Sleven
- 👤 Joseph Kleiman
- 👤 Daniel Hobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:27
CPC Classifications
B; B64; B64D; B64D45/00; B64D2045/0065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3293608A
Cited
US2986725A
Cited
US3333247A
Cited
US3366933A
Cited
US3416140A
Cited
US3366924A
Cited
US3375557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |