Patent US2087181A successfully refreshed from Google Patents.
Patent US2798006A successfully refreshed from Google Patents.
US2798006A
Expired / Lapsed
US
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Method of producing selvage roll roofing
Assignee: Building Products Ltd
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Filing: 1954-05-07
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Granted: 1957-07-02
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Expires: 1974-05-07
Abstract
No abstract record available.
Inventors
- 👤 James R Oldfield
- 👤 William A Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:52
CPC Classifications
E; E04; E04D; E04D5/00; E04D5/10; D; D21; D21J; D21J1/00; D21J1/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24421; Y10T428/2443; Y10T428/24479; Y10T428/24612; Y10T428/2462; Y10T428/24802; Y10T428/24826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A METHOD OF PRODUCING SELVAGE ROLL ROOFING WHICH COMPRISES APPLYING A RELATIVELY THICK COATING OF ADHESIVE WATER-PROOF MATERIAL TO THE LOWER HALF OF A FELT BASE COVERING SAID COATING WITH A SURFACE LAYER OF GRANULAR PARTICLES PARTIALLY EMBEDDED THEREIN AND DEPRESSING THE GRANULAR SURFACED COATING ALONG A NARROW BAND IMMEDIATELY ADJOINING THE UPPER HALF OF THE FELT BASE TO PROVIDE A STRAIGHT RAISED PORTION AT THE JUNCTURE OF THE DEPRESSED AND NON-DEPRESSED PORTIONS OF THE COATING.
Claim 2
Independent Claim
76 words
A METHOD OF PRODUCING SELVAGE ROLL ROOFING WHICH COMPRISES APPLYING A RELATIVELY THICK COATING OF ADHESIVE WATER-PROOF MATERIAL TO THE LOWER HALF OF A FELT BASE COVERING SAID COATING WITH A SURFACE LAYER OF GRANULAR PARTICLES PARTIALLY EMBEDDED THEREIN AND DEPRESSING THE GRANULAR SURFACED COATING ALONG A NARROW BAND IMMEDIATELY ADJOINING THE UPPER HALF OF THE FELT BASE TO PROVIDE A STRAIGHT RAISED PORTION AT THE JUNCTURE OF THE DEPRESSED AND NON-DEPRESSED PORTIONS OF THE COATING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |