Patent US3400411A successfully refreshed from Google Patents.
US3400411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing gasket means
Assignee: WILLIAM H HARVEY CO
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Filing: 1966-08-16
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Granted: 1968-09-10
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Expires: 1986-08-16
Abstract
No abstract record available.
Inventors
- 👤 Harvey Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:51
CPC Classifications
E; E03; E03D; E03D11/00; E03D11/13; E03D11/14; E03D11/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
SEALING MEANS COMPRISING RESILIENT PERMANENT FOAM MEANS DEFINED BY THIN WALLS AROUND OPEN INTERCONNECTED A SUBSTANTIAL PROPORTION OF WHICH CELLS ARE SUBSTANTIALLY COMPLETELY FILLED BY WAX.
Claim 2
Dependent Claim
26 words
SEALING MEANS COMPRISING RESILIENT PERMANENT FOAM MEANS DEFINED BY THIN WALLS AROUND OPEN INTERCONNECTED A SUBSTANTIAL PROPORTION OF WHICH CELLS ARE SUBSTANTIALLY COMPLETELY FILLED BY WAX.
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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |