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Patent US2603547A successfully refreshed from Google Patents.
US2603547A
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Assignee: Individual
•
Filing: 1946-11-22
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Granted: 1952-07-15
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Expires: 1966-11-22
Abstract
No abstract record available.
Inventors
- 👤 Richard M Zook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:03
CPC Classifications
A; A47; A47B; A47B63/00; A47B63/06; A47B63/067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE288099C
Cited
US719890A
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US974663A
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US962749A
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US992299A
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US1264602A
Cited
US1643224A
Cited
US1841530A
Cited
US2214807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |