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US3458246A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1965-12-16
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Granted: 1969-07-29
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Expires: 1985-12-16
Abstract
No abstract record available.
Inventors
- 👤 Jacob Krebs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:57
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/002; G02B25/00; G02B25/002; G02B25/004; G02C; G02C7/00; G02C7/02; G02C7/08; G02C7/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US624369A
Cited
US1252089A
Cited
US2091173A
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US2152050A
Cited
US2387758A
Cited
US2337866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |