US3079729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shingles
Assignee: Building Products Ltd
•
Filing: 1955-04-11
•
Granted: 1963-03-05
•
Expires: 1975-04-11
Abstract
No abstract record available.
Inventors
- 👤 Leslie J Newton
- 👤 James R Oldfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:01
CPC Classifications
E; E04; E04D; E04D1/00; E04D1/26; E04D2001/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A SINGLE COMPRISING A BASE HAVING A FIRST LAYER OF ASPHALT COVERING ONE ENTIRE SURFACE THEREOF, SAID SURFACE COMPRISING EXPOSED AND UNEXPOSED AREAS, GRANULES PAR-
Claim 2
Dependent Claim
25 words
A SINGLE COMPRISING A BASE HAVING A FIRST LAYER OF ASPHALT COVERING ONE ENTIRE SURFACE THEREOF, SAID SURFACE COMPRISING EXPOSED AND UNEXPOSED AREAS, GRANULES PAR-
References Cited (Backward Citations)
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Cited
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Cited
US2142181A
Cited
US2253652A
Cited
US2538206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |