US2727832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite coated structural article
Assignee: Beazer East Inc
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Filing: 1954-05-11
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Granted: 1955-12-20
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Expires: 1974-05-11
Abstract
No abstract record available.
Inventors
- 👤 John C Christensen
- 👤 Jr William F Fair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:03
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/45; C04B41/52; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A PROCESS FOR RENDERING STRUCTURAL ARTICLES RESISTANT TO THE ATTACK OF PESTIFEROUS MARINE ORGANISMS AND TO CORROSION COMPRISING: APPLYING TO A STRUCTURAL ARTICLE A FIRST PROTECTIVE COATING OF A HOT COMPOSITION CONTAINING FROM ABOUT 65 TO ABOUT 80 PARTS BY WEIGHT OF COAL-TAR PITCH AND FROM ABOUT 20 TO ABOUT 35 PARTS BY WEIGHT OF FILLER; PERMITTING SAID FIRST PROTECTIVE COATING TO COOL AND HARDEN; APPLYING A SECOND COATING OF A FIBERED COAL-TAR PITCH EMULSION OVER SAID FIRST PROTECTIVE COATING, SAID FIBERED COAL-TAR PITCH EMULSION CONTAINING FROM ABOUT 77% TO ABOUT 81% BY WEIGHT OF COAL-TAR PITCH EMULSION, FROM ABOUT 3% TO ABOUT 9% BY WEIGHT OF MINERAL FIBERS, AND FROM ABOUT 11% TO ABUT 18% OF ADDED WATER; PERMITTING SAID SECOND COATING TO DRY; APPLYING A THIRD COATING OF A COMPOSITION COMPRISING FROM ABOUT 2 TO ABOUT 3 PARTS BY VOLUME OF SAND AND ABOUT 1 PART BY VOLUME OF PORTLAND CEMENT OVER SAID SECOND COATING; AND THEREAFTER PERMITTING SAID THIRD COATING TO HARDEN.
Claim 2
Dependent Claim
165 words
A PROCESS FOR RENDERING STRUCTURAL ARTICLES RESISTANT TO THE ATTACK OF PESTIFEROUS MARINE ORGANISMS AND TO CORROSION COMPRISING: APPLYING TO A STRUCTURAL ARTICLE A FIRST PROTECTIVE COATING OF A HOT COMPOSITION CONTAINING FROM ABOUT 65 TO ABOUT 80 PARTS BY WEIGHT OF COAL-TAR PITCH AND FROM ABOUT 20 TO ABOUT 35 PARTS BY WEIGHT OF FILLER; PERMITTING SAID FIRST PROTECTIVE COATING TO COOL AND HARDEN; APPLYING A SECOND COATING OF A FIBERED COAL-TAR PITCH EMULSION OVER SAID FIRST PROTECTIVE COATING, SAID FIBERED COAL-TAR PITCH EMULSION CONTAINING FROM ABOUT 77% TO ABOUT 81% BY WEIGHT OF COAL-TAR PITCH EMULSION, FROM ABOUT 3% TO ABOUT 9% BY WEIGHT OF MINERAL FIBERS, AND FROM ABOUT 11% TO ABUT 18% OF ADDED WATER; PERMITTING SAID SECOND COATING TO DRY; APPLYING A THIRD COATING OF A COMPOSITION COMPRISING FROM ABOUT 2 TO ABOUT 3 PARTS BY VOLUME OF SAND AND ABOUT 1 PART BY VOLUME OF PORTLAND CEMENT OVER SAID SECOND COATING; AND THEREAFTER PERMITTING SAID THIRD COATING TO HARDEN.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |