Patent US3272687A successfully refreshed from Google Patents.
US3272687A
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Vapor permeable non-woven fibrous element
Assignee: Eastman Kodak Co
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Filing: 1964-07-22
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Granted: 1966-09-13
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Harrington
- 👤 James L Smith
- 👤 James H Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:09
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/1607; B01D39/1623; B01D39/163; D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H3/00; D04H3/08; D04H3/12; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/249942; Y10T428/249947; Y10T442/00; Y10T442/60; Y10T442/69; Y10T442/692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A VAPOR PERMEABLE NON-WOVEN FIBROUS ELEMENT COMPRISING SUBSTANTIALLY LONGITUDINALLY ALIGNED CONTINUOUS FILAMENTS OF POLYPROPYLENE BONDED AT A SUBSTANTIAL NUMBER OF THE INTERSECTS OF SAID FILAMENTS WITH POLYETHYLENE.
Claim 2
Dependent Claim
27 words
A VAPOR PERMEABLE NON-WOVEN FIBROUS ELEMENT COMPRISING SUBSTANTIALLY LONGITUDINALLY ALIGNED CONTINUOUS FILAMENTS OF POLYPROPYLENE BONDED AT A SUBSTANTIAL NUMBER OF THE INTERSECTS OF SAID FILAMENTS WITH POLYETHYLENE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |