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US2574016A
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Assignee: Individual
•
Filing: 1946-11-12
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Granted: 1951-11-06
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Expires: 1966-11-12
Abstract
No abstract record available.
Inventors
- 👤 Fred G Burg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:33
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/08; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17017; Y10T408/00; Y10T408/65; Y10T408/665; Y10T408/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US809257A
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US985231A
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US915201A
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US1164315A
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US1294428A
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GB122174A
Cited
US1740887A
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US2340477A
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US2378659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |