Patent US2229748A successfully refreshed from Google Patents.
Patent US2745193A successfully refreshed from Google Patents.
US2745193A
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US
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Assignee: Individual
•
Filing: 1954-11-17
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Granted: 1956-05-15
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Expires: 1974-11-17
Abstract
No abstract record available.
Inventors
- 👤 Allan L Ladd
- 👤 Melvin L Speckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:56
CPC Classifications
F; F26; F26B; F26B9/00; F26B9/06; F26B9/08; F26B9/082; F26B9/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |