Patent US2253565A successfully refreshed from Google Patents.
US2253565A
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Assignee: PUREPAC Corp
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Filing: 1939-05-27
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Granted: 1941-08-26
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Expires: 1959-05-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Kinsman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:45
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/18; B65D51/20; B65D43/00; B65D43/02; B65D43/12; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0018; B65D2251/0068; B65D2251/0093; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00259; B65D2543/00277; B65D2543/00435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-08-25 | 1945-02-24 | 1945-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-25 | 1949-02-24 | 1949-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-25 | 1953-02-24 | 1953-08-26 | $7700.00 | Window Closed / Lapsed |