US2906072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Can cover feed
Assignee: WF and John Barnes Co
•
Filing: 1955-11-16
•
Granted: 1959-09-29
•
Expires: 1975-11-16
Abstract
No abstract record available.
Inventors
- 👤 Elliott C B Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:20
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/28; B65B7/2807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734674A
Cited
US1964078A
Cited
US2353200A
Cited
US2385267A
Cited
US2325165A
Cited
US2374168A
Cited
US2497718A
Cited
GB639623A
Cited
US2666563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |