Patent US2936681A successfully refreshed from Google Patents.
US2936681A
Expired / Lapsed
US
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Container blank feeder mechanism
Assignee: Ex-Cell-O Corp
•
Filing: 1957-01-30
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Granted: 1960-05-17
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Expires: 1977-01-30
Abstract
No abstract record available.
Inventors
- 👤 James F Earp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:10
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/74; B31B50/76; B31B50/80; B31B50/804; B31B50/802; B31B50/02; B31B50/04; B31B50/06; B31B50/062; B31B50/78; B65; B65B; B65B43/00; B65B43/12; B65B43/14; B65B43/16; B65B43/18; B65B43/185; B31B2100/00; B31B2120/00; B31B2120/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1654091A
Cited
GB432823A
Cited
US2217784A
Cited
US2665044A
Cited
US2601481A
Cited
US2760415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |