Patent US2998998A successfully refreshed from Google Patents.
US2998998A
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US
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Load responsive track tensioning device
Assignee: LeTourneau Westinghouse Co
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Filing: 1958-03-07
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Granted: 1961-09-05
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Expires: 1978-03-07
Abstract
No abstract record available.
Inventors
- 👤 John H Hyler
- 👤 Walter E Lott
- 👤 Ernst W Spannhake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:18
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/30; B62D49/00; B62D49/06; B62D49/0621; B62D49/0635; B62D55/305; F; F16; F16H; F16H7/00; F16H7/08; F16H7/10; F16H7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1482726A
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US2034125A
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US2041599A
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US2426342A
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US2427162A
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US2719062A
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US2774638A
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US2837379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |