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US2488284A
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Parallel ruling means
Assignee: Hamilton Manufacturing Co
•
Filing: 1946-09-20
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Granted: 1949-11-15
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Expires: 1966-09-20
Abstract
No abstract record available.
Inventors
- 👤 George E Froelich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:14
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/02; B43L13/04; B43L13/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191003881A
Cited
DE107958C
Cited
US550413A
Cited
US714594A
Cited
GB191304341A
Cited
US1682083A
Cited
US1977213A
Cited
US2102008A
Cited
US2362873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |