US3538699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling delivery of filamentary material to rotatable collectors
Assignee: Owens Corning
•
Filing: 1969-02-28
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Granted: 1970-11-10
•
Expires: 1989-02-28
Abstract
No abstract record available.
Inventors
- 👤 Cecil R Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:07
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/20; D01H1/28; D01H1/30; D01H1/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3003303A
Cited
US2952115A
Cited
US3099126A
Cited
US3141287A
Cited
US3153312A
Cited
US3385044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |