US2975736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loop shedder
Assignee: SPENCER WRIGHT INDUSTRIES Inc A CORP OF TENNESSEE
•
Filing: 1958-06-23
•
Granted: 1961-03-21
•
Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Card Joseph Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:05
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/16; D05C15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1098814A
Cited
US1388943A
Cited
US2062027A
Cited
US1924715A
Cited
US2626619A
Cited
US2836134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |