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US2544657A
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US
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Assignee: Individual
•
Filing: 1947-09-05
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Granted: 1951-03-13
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Expires: 1967-09-05
Abstract
No abstract record available.
Inventors
- 👤 Walton W Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:26
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/0004; B65D19/0006; B65D19/0008; B65D19/002; B65D19/0024; B65D19/0028; B65D19/001; B65D19/0012; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00019; B65D2519/00024; B65D2519/00044; B65D2519/00049; B65D2519/00054; B65D2519/00059; B65D2519/00079; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00283; B65D2519/00293; B65D2519/00303; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00333; B65D2519/00338; B65D2519/00358; B65D2519/00368; B65D2519/00373; B65D2519/00388; B65D2519/00547; B65D2519/00552; B65D2519/00557; B65D2519/00562; B65D2519/00736; B65D2519/00935; B65D2519/0094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191213287A
Cited
US1296359A
Cited
US1836885A
Cited
US1754784A
Cited
US1934389A
Cited
US2444184A
Cited
US2432295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |