US3255680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for and method of forming an expansion joint
Assignee: JOINT CONTROLS Inc
•
Filing: 1962-10-22
•
Granted: 1966-06-14
•
Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 William M Cooper
- 👤 Jr James T Thorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:20
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/12; E01C11/126; E01C23/00; E01C23/02; E01C23/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A SEALING DEVICE COMPRISING: (A) AN ELONGATE BLOCK OF MATERIAL CHARACTERIZED BY COMPRESSIBILITY YET HAVING INHERENT SLOW RECUPERATIVE EXPANDABILITY WHEREBY SAID BLOCK WILL TEND TO EXPAND TO ITS ORIGINAL SHAPE AFTER COMPRESSION, (B) A FLAT ELONGATE STRIP OF MATERIAL HAVING SIDES AND OPPOSING EDGE PORTION, ONE OF SAID EDGE PORTIONS BEING EMBEDDED IN SAID ELONGATE BLOCK, THE ELONGATE BLOCK EXTENDING BEYOND SAID EDGE PORTION AND ON EACH SIDE OF SAID STRIP, (C) SAID OUTER EDGE PORTION HAVING A CHANNEL DIVERGING TOWARD SAID ONE EDGE PORTION AND SPACED THEREFROM AND FROM THE ELONGATE BLOCK.
Claim 2
Dependent Claim
93 words
A SEALING DEVICE COMPRISING: (A) AN ELONGATE BLOCK OF MATERIAL CHARACTERIZED BY COMPRESSIBILITY YET HAVING INHERENT SLOW RECUPERATIVE EXPANDABILITY WHEREBY SAID BLOCK WILL TEND TO EXPAND TO ITS ORIGINAL SHAPE AFTER COMPRESSION, (B) A FLAT ELONGATE STRIP OF MATERIAL HAVING SIDES AND OPPOSING EDGE PORTION, ONE OF SAID EDGE PORTIONS BEING EMBEDDED IN SAID ELONGATE BLOCK, THE ELONGATE BLOCK EXTENDING BEYOND SAID EDGE PORTION AND ON EACH SIDE OF SAID STRIP, (C) SAID OUTER EDGE PORTION HAVING A CHANNEL DIVERGING TOWARD SAID ONE EDGE PORTION AND SPACED THEREFROM AND FROM THE ELONGATE BLOCK.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |