Patent US3403634A successfully refreshed from Google Patents.
US3403634A
Expired / Lapsed
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Automatically controlled railway passenger vehicle system
Assignee: Bae Automated Systems Inc
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Filing: 1964-07-22
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Granted: 1968-10-01
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 Crowder Wyly Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:47
CPC Classifications
B; B61; B61B; B61B13/00; B61B13/10; B61C; B61C11/00; B61D; B61D19/00; B61D19/003; B61D19/005
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |