Patent US2571850A successfully refreshed from Google Patents.
US2571850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributor for bituminous and like materials
Assignee: E D Etnyre and Co
•
Filing: 1947-10-15
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Granted: 1951-10-16
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Expires: 1967-10-15
Abstract
No abstract record available.
Inventors
- 👤 Samuel R Etnyre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:49
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/16; E01C19/17; E01C19/176
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US420889A
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US483269A
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US522759A
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US596590A
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US680328A
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US695925A
Cited
US1743245A
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US2014355A
Cited
GB497232A
Cited
US2346478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |