Patent US3499810A successfully refreshed from Google Patents.
US3499810A
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US
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Method of making a bonded nonwoven web of staple-length filaments
Assignee: EIDP Inc
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Filing: 1967-05-31
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Granted: 1970-03-10
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Expires: 1987-05-31
Abstract
No abstract record available.
Inventors
- 👤 Dinkar Ganpat Wagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:10
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2913; Y10T428/2922
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) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |