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Patent US2704967A successfully refreshed from Google Patents.
US2704967A
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US
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Method of constructing roads
Assignee: Golden Bear Oil Co
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Filing: 1951-03-28
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Granted: 1955-03-29
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Expires: 1971-03-28
Abstract
No abstract record available.
Inventors
- 👤 Fritz S Rostler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:53
CPC Classifications
E; E01; E01C; E01C3/00; E01C3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1546540A
Cited
US1884795A
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US1918155A
Cited
US2220531A
Cited
US2259374A
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US2646361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-28 | 1958-09-27 | 1959-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-28 | 1962-09-27 | 1963-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-28 | 1966-09-27 | 1967-03-29 | $7700.00 | Window Closed / Lapsed |