US3382979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable woven filtering material having angularly disposed guide lines
Assignee: Appleton Mills
•
Filing: 1967-04-17
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Granted: 1968-05-14
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Expires: 1987-04-17
Abstract
No abstract record available.
Inventors
- 👤 Howard M Helland
- 👤 Frank H Orbison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:07
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/029; D03; D03D; D03D23/00; D21F1/00; D21F1/0027; D21F1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |