US3536794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making thermomagnetic recording members
Assignee: EIDP Inc
•
Filing: 1967-05-08
•
Granted: 1970-10-27
•
Expires: 1987-05-08
Abstract
No abstract record available.
Inventors
- 👤 Halsey B Stevenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:57
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/16; Y; Y10; Y10S; Y10S264/00; Y10S264/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA755024A
Cited
US2046954A
Cited
FR982464A
Cited
US3085295A
Cited
US3141407A
Cited
US3061500A
Cited
US3265776A
Cited
US3325339A
Cited
US3408437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |