US3494657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duct for the power supply conduits of a trailer carried in the trailer floor
Assignee: Fruehauf Corp
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Filing: 1969-03-11
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Granted: 1970-02-10
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Expires: 1989-03-11
Abstract
No abstract record available.
Inventors
- 👤 Keith W Tantlinger
- 👤 John W Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:36
CPC Classifications
B; B62; B62D; B62D25/00; B62D25/20; B62D25/2054; B62D21/00; B62D21/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |