US3401052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for waterproofing textiles
Assignee: 3M Co
•
Filing: 1966-03-01
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Granted: 1968-09-10
•
Expires: 1986-03-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Berger
- 👤 Carl C Simmons
- 👤 James E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:48
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/06; D06F; D06F58/00; D06F58/20; D06F58/203; D06F58/30; D06M13/00; D06M13/322; D06M13/35; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; D06M23/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |