US3378836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Train slack measuring apparatus
Assignee: DONALD L MUYSKENS
•
Filing: 1966-08-29
•
Granted: 1968-04-16
•
Expires: 1986-08-29
Abstract
No abstract record available.
Inventors
- 👤 Ivan L Joy
- 👤 Gary M Hoffsommer
- 👤 Merlin G Reiter
- 👤 Donald L Muyskens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:13
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; B; B61; B61L; B61L1/00; B61L1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1747041A
Cited
US3273145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |