US3015582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roofing felt
Assignee: Owens Corning
•
Filing: 1957-01-15
•
Granted: 1962-01-02
•
Expires: 1977-01-15
Abstract
No abstract record available.
Inventors
- 👤 Allen L Simison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:24
CPC Classifications
D; D06; D06N; D06N5/00; E; E04; E04D; E04D5/00; E04D5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AN ASPHALT IMPREGNATED ROOFING FELT COMPLETELY FIBROUS IN BASIC NATURE HAVING A MINOR FIBROUS GLASS COMPONENT AMOUNTING TO ONE TO THREE PERCENT BY WEIGHT OF THE IMPREGNATED FELT, AND BEING IN THE FORM OD SHORT MULTIFILAMENT STRANDS.
Claim 2
Dependent Claim
37 words
AN ASPHALT IMPREGNATED ROOFING FELT COMPLETELY FIBROUS IN BASIC NATURE HAVING A MINOR FIBROUS GLASS COMPONENT AMOUNTING TO ONE TO THREE PERCENT BY WEIGHT OF THE IMPREGNATED FELT, AND BEING IN THE FORM OD SHORT MULTIFILAMENT STRANDS.
References Cited (Backward Citations)
GB483769A
Cited
US2555401A
Cited
US2626864A
Cited
US2702241A
Cited
US2626429A
Cited
US2859109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |