US3421929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tufting mechanism,method,stitches and article
Assignee: SPENCER WRIGHT INDUSTRIES Inc A CORP OF TENNESSEE
•
Filing: 1966-06-14
•
Granted: 1969-01-14
•
Expires: 1986-06-14
Abstract
No abstract record available.
Inventors
- 👤 Charles W Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:44
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/14; D05C15/145
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1827614A
Cited
US2129402A
Cited
US3253426A
Cited
US3230917A
Cited
US3225724A
Cited
US3301205A
Cited
FR1379411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |