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US2654272A
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Assignee: Individual
•
Filing: 1949-07-16
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Granted: 1953-10-06
•
Expires: 1969-07-16
Abstract
No abstract record available.
Inventors
- 👤 Warren Walter Wallace Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:27
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/02; B21J15/10; B21J15/36; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49938; Y10T29/49943; Y10T29/49947; Y10T29/49954; Y10T29/49956; Y10T29/49972
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US439043A
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US923504A
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US1119735A
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US1133775A
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US1672567A
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US1591864A
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US1702569A
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FR730179A
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US2047341A
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US2352429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |