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Patent US3001649A successfully refreshed from Google Patents.
US3001649A
Expired / Lapsed
US
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Apparatus for sorting switch ties
Assignee: Southern Wood Preserving Co
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Filing: 1959-08-10
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Granted: 1961-09-26
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Expires: 1979-08-10
Abstract
No abstract record available.
Inventors
- 👤 Rogers Thomas Gibbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:29
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/04; B07C5/12; B07C5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1220799A
Cited
US1945455A
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US2748937A
Cited
US2821301A
Cited
US2835385A
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US2867323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |