Patent US3958175A successfully refreshed from Google Patents.
Patent US3204679A successfully refreshed from Google Patents.
US3204679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fasteners for sheet material or the like
Assignee: JOHN WALSH AND CO Ltd
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Filing: 1963-02-19
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Granted: 1965-09-07
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Expires: 1983-02-19
Abstract
No abstract record available.
Inventors
- 👤 John Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:37
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/06; F16B37/062; F16B37/068; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A FASTENING DEVICE FOR USE WITH INEXTENSIBLE SHEET MATERIAL AND ADAPTED TO BE SECURED TO SAID MATERIAL BY RIVETING OR PEENING COMPRISING A HEAD PORTION, A HOLLOW OPEN ENDED SKIRT PORTION INTEGRAL, CO-AXIAL WITH AND OF SMALLER DIAMETER THAN SAID HEAD PORTION, A SHOULDER AT THE JUNCTION OF SAID HEAD AND SKIRT PORTIONS EXTENDING SUBSTANTIALLY PERPENDICULAR FROM SAID SKIRT PORTION AGAINST WHICH THE SHEET MATERIAL IS CLAMPED WHEN RIVETED OR PEENED, S SUBSTANTIALLY CONTINUOUS SUBSTANTIALLY V-SHAPED RIBBED DEPENDING FLANGE WITH ITS LOWEST EDGE IN SUBSTANTIALLY THE SAME PLANE AROUND THE PERIPHERY OF SAID HEAD PORTION, FORMED BY KNURLING ON THE CIRCUMFERENCE OF THE HEAD PORTION AT LEAST AT THE OTHER PERIPHERY OF SAID SHOULDER, AND A KNURLED SURFACE ON THE OUTER SURFACE OF SAID SKIRT PORTION LOCATED AT LEAST TO ENGAGE THE OPPOSITE SIDE OF THE SHEET MATERIAL AGAINST WHICH SAID SHOULDER CLAMPS, SAID HEAD PORTION HAVING MEANS ADDITIONAL TO SAID KNURLED SURFACE FOR CONNECTION TO A TORQUE-APPLYING MEMBER.
Claim 2
Dependent Claim
159 words
A FASTENING DEVICE FOR USE WITH INEXTENSIBLE SHEET MATERIAL AND ADAPTED TO BE SECURED TO SAID MATERIAL BY RIVETING OR PEENING COMPRISING A HEAD PORTION, A HOLLOW OPEN ENDED SKIRT PORTION INTEGRAL, CO-AXIAL WITH AND OF SMALLER DIAMETER THAN SAID HEAD PORTION, A SHOULDER AT THE JUNCTION OF SAID HEAD AND SKIRT PORTIONS EXTENDING SUBSTANTIALLY PERPENDICULAR FROM SAID SKIRT PORTION AGAINST WHICH THE SHEET MATERIAL IS CLAMPED WHEN RIVETED OR PEENED, S SUBSTANTIALLY CONTINUOUS SUBSTANTIALLY V-SHAPED RIBBED DEPENDING FLANGE WITH ITS LOWEST EDGE IN SUBSTANTIALLY THE SAME PLANE AROUND THE PERIPHERY OF SAID HEAD PORTION, FORMED BY KNURLING ON THE CIRCUMFERENCE OF THE HEAD PORTION AT LEAST AT THE OTHER PERIPHERY OF SAID SHOULDER, AND A KNURLED SURFACE ON THE OUTER SURFACE OF SAID SKIRT PORTION LOCATED AT LEAST TO ENGAGE THE OPPOSITE SIDE OF THE SHEET MATERIAL AGAINST WHICH SAID SHOULDER CLAMPS, SAID HEAD PORTION HAVING MEANS ADDITIONAL TO SAID KNURLED SURFACE FOR CONNECTION TO A TORQUE-APPLYING MEMBER.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |