Patent US2690986A successfully refreshed from Google Patents.
US2690986A
Expired / Lapsed
US
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Process for repairing leaky wood barrels
Assignee: NAT DISTILLERS PROD CORP
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Filing: 1950-12-01
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Granted: 1954-10-05
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Expires: 1970-12-01
Abstract
No abstract record available.
Inventors
- 👤 Edward P Vollertsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:26
CPC Classifications
B; B29; B29C; B29C73/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
METHOD OF REPAIRING LEAKY WOOD BARRELS WHICH COMPRISES APPLYING TO THE SURFACE OF SUCH A BARREL IN THE AREA SURROUNDING SUCH A LEAK A FIRST LAYER OF SAWDUST DISSEMINATED IN A SOLUTION OF SELF-SETTING CEMENT TO FORM A SEMI-SOLID MIXTURE, SECURING TO THE SAID BARREL OVERLAYING SAID FIRST LAYER A FLAT METAL GRID, AND APPLYING TO THE SAID GRID AND THE SAID OUTER SURFACE OF SAID FIRST LAYER A SECOND LAYER OF SAID MIXTURE.
Claim 2
Dependent Claim
74 words
METHOD OF REPAIRING LEAKY WOOD BARRELS WHICH COMPRISES APPLYING TO THE SURFACE OF SUCH A BARREL IN THE AREA SURROUNDING SUCH A LEAK A FIRST LAYER OF SAWDUST DISSEMINATED IN A SOLUTION OF SELF-SETTING CEMENT TO FORM A SEMI-SOLID MIXTURE, SECURING TO THE SAID BARREL OVERLAYING SAID FIRST LAYER A FLAT METAL GRID, AND APPLYING TO THE SAID GRID AND THE SAID OUTER SURFACE OF SAID FIRST LAYER A SECOND LAYER OF SAID MIXTURE.
References Cited (Backward Citations)
US1767421A
Cited
US2304263A
Cited
FR869029A
Cited
US2290946A
Cited
US2399489A
Cited
US2419614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |