Patent US2747769A successfully refreshed from Google Patents.
US2747769A
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US
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Seal stripping and opening device
Assignee: Gisholt Machine Co
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Filing: 1952-02-09
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Granted: 1956-05-29
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Expires: 1972-02-09
Abstract
No abstract record available.
Inventors
- 👤 Warren E Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:55
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US762800A
Cited
GB420039A
Cited
DE628262C
Cited
US2103302A
Cited
US2036105A
Cited
US2089769A
Cited
GB509597A
Cited
US2579458A
Cited
US2601480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |