Patent US3323256A successfully refreshed from Google Patents.
US3323256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing gasket of combined rigid and flexible extrusions
Assignee: H O CANFIELD CO Inc
•
Filing: 1965-04-02
•
Granted: 1967-06-06
•
Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Daniel F Reahard
- 👤 Cowles Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:13
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/08; F25D23/082; F25D23/087; E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A SEALING GASKET FOR USE IN A CLOSURE COMPRISING: A RESILIENT ELONGATED SEALING STRIP, U-SHAPED IN CROSSSECTION WITH A LONGITUDINALLY EXTENDING TONGUE PORTION PROJECTING FROM ONE LEG MEMBER OF SAID U TOWARD THE OTHER LEG MEMBER OF SAUD U, AND A SUPPORT STRIP FORMED OF A FLAT, RIGID, ELONGATED BODY PORTION HAVING, IN CROSS-SECTION, A PAIR OF OPPOSED, LONGITUDINAL LEG PORTIONS EACH PROJECTING FROM ONE EDGE THEREOF, SAID LEG PORTIONS FRICTIONALLY ENGAGING SAID TONGUE PORTION, ONE OF SAID STRIPS INCLUDING MEANS FOR APPLYING PRESSURE TO ONE OF SAID LEG PORTIONS WHEN SAID GASKET IS MOUNTED TO THEREBY INCREASE THE FRICTIONAL ENGAGEMENT BETWEEN SAID LEG PORTIONS AND SAID TONGUE PORTIONS.
Claim 2
Dependent Claim
109 words
A SEALING GASKET FOR USE IN A CLOSURE COMPRISING: A RESILIENT ELONGATED SEALING STRIP, U-SHAPED IN CROSSSECTION WITH A LONGITUDINALLY EXTENDING TONGUE PORTION PROJECTING FROM ONE LEG MEMBER OF SAID U TOWARD THE OTHER LEG MEMBER OF SAUD U, AND A SUPPORT STRIP FORMED OF A FLAT, RIGID, ELONGATED BODY PORTION HAVING, IN CROSS-SECTION, A PAIR OF OPPOSED, LONGITUDINAL LEG PORTIONS EACH PROJECTING FROM ONE EDGE THEREOF, SAID LEG PORTIONS FRICTIONALLY ENGAGING SAID TONGUE PORTION, ONE OF SAID STRIPS INCLUDING MEANS FOR APPLYING PRESSURE TO ONE OF SAID LEG PORTIONS WHEN SAID GASKET IS MOUNTED TO THEREBY INCREASE THE FRICTIONAL ENGAGEMENT BETWEEN SAID LEG PORTIONS AND SAID TONGUE PORTIONS.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |