Patent US2637673A successfully refreshed from Google Patents.
US2637673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven film coated fabric
Assignee: Reconstruction Finance Corp
•
Filing: 1950-01-30
•
Granted: 1953-05-05
•
Expires: 1970-01-30
Abstract
No abstract record available.
Inventors
- 👤 Randolph H Barnard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4218; B; B32; B32B; B32B27/00; B32B27/12; B32B27/18; B32B27/20; B32B27/28; B32B27/30; B32B27/304; B32B5/00; B32B5/02; B32B5/022; B32B7/00; B32B7/04; B32B7/12; B32B2262/00; B32B2262/10; B32B2262/101; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/3065; B32B2307/40; B32B2307/412; B32B2307/50; B32B2307/54; B32B2307/546; B32B2307/582; B32B2307/5825; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2419/00; B32B2607/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
AS A NEW PRODUCT OF MANUFACTURE, A NONWOVEN FABRIC SUBSTITUTE CONSISTING OF THIN NONWOVEN SEMI-TRANSPARENT MAT OF STAPLES GLASS FIBER FORMING A STRUCTURAL SUPPORTING BASE AND A FLEXIBLE FLUID IMPERVIOUS FILM OF LESSER THICKNESS BONDED ON ONE SIDE THEREOF.
Claim 2
Dependent Claim
39 words
AS A NEW PRODUCT OF MANUFACTURE, A NONWOVEN FABRIC SUBSTITUTE CONSISTING OF THIN NONWOVEN SEMI-TRANSPARENT MAT OF STAPLES GLASS FIBER FORMING A STRUCTURAL SUPPORTING BASE AND A FLEXIBLE FLUID IMPERVIOUS FILM OF LESSER THICKNESS BONDED ON ONE SIDE THEREOF.
References Cited (Backward Citations)
US2511887A
Cited
US2107901A
Cited
US2366514A
Cited
US2392882A
Cited
US2477555A
Cited
US2422969A
Cited
US2481949A
Cited
US2571372A
Cited
US2537126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |