Patent US3394498A successfully refreshed from Google Patents.
US3394498A
Expired / Lapsed
US
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Traffic control devices
Assignee: RAILROAD ACDESSORIES Corp
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Filing: 1966-02-25
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Granted: 1968-07-30
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Expires: 1986-02-25
Abstract
No abstract record available.
Inventors
- 👤 Willard O Reinitz
- 👤 Harry A Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:17
CPC Classifications
B; B61; B61L; B61L29/00; B61L29/02; B61L29/04; E; E01; E01F; E01F13/00; E01F13/04; E01F13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1356302A
Cited
US1416162A
Cited
US1993533A
Cited
US2255878A
Cited
US2203914A
Cited
US2550399A
Cited
US2701856A
Cited
US2874493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |