US3500392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: VLADIMIR GEORGIEVICH SHIDLOVSK
•
Filing: 1966-06-14
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Granted: 1970-03-10
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Expires: 1986-06-14
Abstract
No abstract record available.
Inventors
- 👤 Jury Ivanovich Maljuk
- 👤 Vladimir Georgievic Shidlovsky
- 👤 Alexandr Viktorovich Zelinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:34
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1523; G02F1/1524; G09; G09F; G09F9/00; G09F9/30; G09G; G09G3/00; G09G3/04; G09G3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB241636A
Cited
US3303488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |