US3530068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic antifriction materials
Assignee: Individual
•
Filing: 1967-06-02
•
Granted: 1970-09-22
•
Expires: 1987-06-02
Abstract
No abstract record available.
Inventors
- 👤 Vasily Vladimirovich Korshak
- 👤 Svetlana Vasilievn Vinogradova
- 👤 Grigory Lvovich Slonimsky
- 👤 Irina Alexandrovna Gribova
- 👤 Alla Nikolaevna Chumaevskaya
- 👤 Alexandr Petrovich Krasnov
- 👤 Zinaida Yakovlevna Fomina
- 👤 Anri Alexandrovich Askadsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:12
CPC Classifications
C; C10; C10M; C10M7/00; C10M2201/00; C10M2201/04; C10M2201/05; C10M2201/06; C10M2201/065; C10M2201/066; C10M2209/00; C10M2209/10; C10M2209/101; C10M2225/00; C10M2225/02; C10N; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2465051A
Cited
US3014865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |