Patent US2728611A successfully refreshed from Google Patents.
US2728611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track compensating apparatus
Assignee: Individual
•
Filing: 1953-05-01
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Granted: 1955-12-27
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Expires: 1973-05-01
Abstract
No abstract record available.
Inventors
- 👤 Brauss Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:25
CPC Classifications
F; F41; F41H; F41H7/00; F41H7/02; B; B62; B62D; B62D55/00; B62D55/08; B62D55/30; B62D55/305; E; E02; E02F; E02F9/00; E02F9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1981867A
Cited
US1964735A
Cited
US2149297A
Cited
US2444759A
Cited
US2436681A
Cited
US2504128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |