Patent GB1317618A successfully refreshed from Google Patents.
US2552702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1946-09-11
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Granted: 1951-05-15
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Expires: 1966-09-11
Abstract
No abstract record available.
Inventors
- 👤 Eldon W Woolfolk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:44
CPC Classifications
A; A21; A21B; A21B3/00; A21B3/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1673947A
Cited
US1734328A
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US1779335A
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US1768954A
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US1980843A
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US2078891A
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US2326545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |