US2984480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeder construction
Assignee: Individual
•
Filing: 1958-01-28
•
Granted: 1961-05-16
•
Expires: 1978-01-28
Abstract
No abstract record available.
Inventors
- 👤 Donald F Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:50
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/02; B65H5/021; B65H5/023; B65H2404/00; B65H2404/20; B65H2404/26; B65H2404/261
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US920154A
Cited
AT102144B
Cited
US2352088A
Cited
US2331533A
Cited
US2488551A
Cited
US2653743A
Cited
US2761680A
Cited
US2827287A
Cited
US2845264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |