US3369958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roofing materials
Assignee: Individual
•
Filing: 1964-08-17
•
Granted: 1968-02-20
•
Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Fleeman Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:23
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/17; E04D13/172; E04D3/00; E04D3/35; E04D3/351; E04D3/352; E04D5/00; E04D5/10; E04D5/12; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24752; Y10T428/31504; Y10T428/31815; Y10T428/31826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A SHEET COVERING COMPRISING A BASE CONSISTING OF A LAMINATION OF A THERMO-PLASTIC PLASTIC SHEET BETWEEN SHEETS OF PAPER BONDED TOGETHER AND EMBOSSED UNDER HEAT, AND THEN COATED ON ONE SIDE WITH BITUMEN, TAR OR RUBBER WHICH
Claim 2
Dependent Claim
37 words
A SHEET COVERING COMPRISING A BASE CONSISTING OF A LAMINATION OF A THERMO-PLASTIC PLASTIC SHEET BETWEEN SHEETS OF PAPER BONDED TOGETHER AND EMBOSSED UNDER HEAT, AND THEN COATED ON ONE SIDE WITH BITUMEN, TAR OR RUBBER WHICH
References Cited (Backward Citations)
US271075A
Cited
US315503A
Cited
US347763A
Cited
US1193013A
Cited
US1409768A
Cited
US1902872A
Cited
US2042470A
Cited
US2275575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |