Patent US2623685A successfully refreshed from Google Patents.
US2623685A
Expired / Lapsed
US
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Plastic cover for waxed paper containers
Assignee: CROWN CORK SPECIALTY Corp
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Filing: 1947-10-03
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Granted: 1952-12-30
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Expires: 1967-10-03
Abstract
No abstract record available.
Inventors
- 👤 Donald W Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:38
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/64; B65D5/68; B65D15/00; B65D15/22; B65D43/00; B65D43/02; B65D43/0202; B65D43/0214; B65D43/0218; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/0012; B65D2543/00175; B65D2543/00194; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00537; B65D2543/00555
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |