US3176685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold-formable splints
Assignee: Union Carbide Corp
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Filing: 1963-03-11
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Granted: 1965-04-06
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Walter H Smarook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/04; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A COLD-FORMABLE SPLING COMPRISING AN ELONGATED MEMBER HAVING A THERMOPLASTIC CORE OF FROM 0.005 INCH TO 1.4 INCHES THICK, SAID CORE HAVING SECURED TO BOTH SURFACES THEREOF A METAL FOIL OF FROM 0.00025 INCH TO 0.01 INCH THICK, WHEREIN SAID THERMOPLASTIC CORE HAS A THICKNESS GREATER THAN THE COMBINED THICKNESS OF THE METAL FOIL LAMINATE, AND WHEREIN THE SUM OF THE YIELD STRENGTH IN TENSION AND THE YIELD STRENGTH IN COMPRESSION OF THE SAID METAL FOIL LAMINATE IS GREATER THAN THE SUM OF THE YIELD STRENGTH IN TENSION AND THE YIELD STRENGTH IN COMPRESSION OF SAID THERMOPLASTIC CORE, BUT LESS THAN THE SHEAR STRENGTH OF THE METAL-THERMOPLASTIC INTERFACES OF SAID COMPOSITE LAMINATE, AND LESS THAN THE SHEAR STRENGTH OF SAID THERMOPLASTIC CORE.
Claim 2
Dependent Claim
122 words
A COLD-FORMABLE SPLING COMPRISING AN ELONGATED MEMBER HAVING A THERMOPLASTIC CORE OF FROM 0.005 INCH TO 1.4 INCHES THICK, SAID CORE HAVING SECURED TO BOTH SURFACES THEREOF A METAL FOIL OF FROM 0.00025 INCH TO 0.01 INCH THICK, WHEREIN SAID THERMOPLASTIC CORE HAS A THICKNESS GREATER THAN THE COMBINED THICKNESS OF THE METAL FOIL LAMINATE, AND WHEREIN THE SUM OF THE YIELD STRENGTH IN TENSION AND THE YIELD STRENGTH IN COMPRESSION OF THE SAID METAL FOIL LAMINATE IS GREATER THAN THE SUM OF THE YIELD STRENGTH IN TENSION AND THE YIELD STRENGTH IN COMPRESSION OF SAID THERMOPLASTIC CORE, BUT LESS THAN THE SHEAR STRENGTH OF THE METAL-THERMOPLASTIC INTERFACES OF SAID COMPOSITE LAMINATE, AND LESS THAN THE SHEAR STRENGTH OF SAID THERMOPLASTIC CORE.
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |