US2999579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer apparatus
Assignee: Individual
•
Filing: 1957-10-30
•
Granted: 1961-09-12
•
Expires: 1977-10-30
Abstract
No abstract record available.
Inventors
- 👤 Valerian R Kostrzewa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:38
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/14; B23Q7/1426; B23Q7/1478; B23Q7/1489
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1738039A
Cited
US2392169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |