US2985002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
aibel
Assignee: —
•
Filing: —
•
Granted: 1961-05-23
•
Expires: 1978-05-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:55
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/14; D04B21/18; D04B21/10; D04B21/12; D04B21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US321153A
Cited
US1513066A
Cited
US2412869A
Cited
US2878661A
Cited
US1993766A
Cited
DE649553C
Cited
US2153645A
Cited
US2403793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |