Patent US3233503A successfully refreshed from Google Patents.
US3233503A
Expired / Lapsed
US
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Fasteners
Assignee: United Carr Inc
•
Filing: 1963-06-04
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Granted: 1966-02-08
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Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 Fernberg Eric Birger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:26
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/06; F16B21/08; F16B21/086; B; B65; B65D; B65D39/00; B65D39/0005; B65D39/0023; B65D2539/00; B65D2539/001; B65D2539/005; Y; Y10; Y10S; Y10S411/00; Y10S411/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A UNITARY, MOLDED, RESILIENT FASTENING DEVICE ADAPTED FOR FRICTIONALLY ENGAGING THE INTERNAL WALLS DEFINING AXIALLY ALIGNED, CIRCULAR APERTURES OF A PLURALITY OF OVERLAPPING PANELS COMPRISING AN ENLARGED, IMPERFORATE HEAD SECTION, AN ELONGATED, CONTINUOUS, TUBUALR SHANK EXTENDING FROM SAID HEAD SECTION TO AN OPEN END TERMINATION REMOTE FROM SAID HEAD, SAID SHANK BEING OVAL IN TRANSVERSE CROSS-SECTON, HAVING AT LEAST ONE INWARDLY EXTENDING LONGITUDINAL FOLD AT ITS MINOR DIAMETRICAL PORTIONS AND DEFINING A CURVED OUTLINE WHICH INCREASES IN TRANSVERSE DIMENSION FROM THE HEAD TO AN INTERMEDIATE POINT AND DECREASES IN TRANSVERSE DIMENSION FORM THE INTERMEDIATE POINT TO THE OPEN END, THE SIDE WALL OF SAID SHANK HAVING A GENERALLY UNIFORM THICKNESS OVER THE MAJOR PORTION OF ITS LENGTH AND A DECREASING THICKNESS AT THE END REMOTE FROM SAID HEAD SECTION.
Claim 2
Dependent Claim
129 words
A UNITARY, MOLDED, RESILIENT FASTENING DEVICE ADAPTED FOR FRICTIONALLY ENGAGING THE INTERNAL WALLS DEFINING AXIALLY ALIGNED, CIRCULAR APERTURES OF A PLURALITY OF OVERLAPPING PANELS COMPRISING AN ENLARGED, IMPERFORATE HEAD SECTION, AN ELONGATED, CONTINUOUS, TUBUALR SHANK EXTENDING FROM SAID HEAD SECTION TO AN OPEN END TERMINATION REMOTE FROM SAID HEAD, SAID SHANK BEING OVAL IN TRANSVERSE CROSS-SECTON, HAVING AT LEAST ONE INWARDLY EXTENDING LONGITUDINAL FOLD AT ITS MINOR DIAMETRICAL PORTIONS AND DEFINING A CURVED OUTLINE WHICH INCREASES IN TRANSVERSE DIMENSION FROM THE HEAD TO AN INTERMEDIATE POINT AND DECREASES IN TRANSVERSE DIMENSION FORM THE INTERMEDIATE POINT TO THE OPEN END, THE SIDE WALL OF SAID SHANK HAVING A GENERALLY UNIFORM THICKNESS OVER THE MAJOR PORTION OF ITS LENGTH AND A DECREASING THICKNESS AT THE END REMOTE FROM SAID HEAD SECTION.
References Cited (Backward Citations)
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |