Patent US3131081A successfully refreshed from Google Patents.
US3131081A
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Method for manufacturing gasketed closure cap blank for glass containers
Assignee: OI Glass Inc
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Filing: 1961-11-13
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Granted: 1964-04-28
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Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 Charles W Husum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:54
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/0442; B65D41/10; B65D41/12; B65D41/125; Y; Y10; Y10S; Y10S260/00; Y10S260/37
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
THE METHOD OF PRODUCING A GASKETED CLOSURE BLANK CONTAINING A PLURALITY OF STRATIFIED GASKETS BONDED THERETO WHICH COMPRISES THE STEPS OF APPLYING A THIN PROTECTIVE COATING ON THE TINNED SURFACE OF A METAL SHEET, LAYING DOWN AN ANNULAR DEPOSIT OF A VINYL PLASTISOL COMPOSITION TO GIVE, WHEN CURED, A RELATIVELY HARD GASKET LAYER, CURING SAID ANNULAR DEPOSIT, LAYING A SECOND DEPOSIT OF A VINYL PLASTISOL COMPOSITION ON SAID FIRST DEPOSIT TO GIVE, WHEN CURED, A GASKET SOFTER THAN SAID FIRST GASKET, AND CURING SAID SECOND DEPOSIT.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |