US3251077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring assembly
Assignee: Individual
•
Filing: 1964-03-03
•
Granted: 1966-05-17
•
Expires: 1984-03-03
Abstract
No abstract record available.
Inventors
- 👤 Ronald H Beckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:53
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/54; A47C31/00; A47C31/02; A47C7/00; A47C7/02; A47C7/025; A47C7/027; Y; Y10; Y10S; Y10S297/00; Y10S297/03; Y10S297/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A RESILIENT LOAD SUPPORTING DEVICE COMPRISING: A PLURALITY OF VENTED RESILIENT BELLOWS SPRINGS SECURED IN A PATTERN; SAID SPRINGS BEING ENVELOPED WITHIN FLEXIBLE ENCLOSURE MEANS; AN UNDULATED POLYMERIC BAND GIRDLING THE PATTERN OF SPRINGS, AND INTERMESHED WITH THE BELLOWS OF THE OUTER MOST SPRINGS TO PROVIDE EDGE SUPPORT AND PERIPHERAL SPRING RETENTION, SAID BAMD BEIND COMPRESSIBLE UNDER LOAD BUT HAVING RESISTANCE TO COMPRESSION TO EFFECTUATE EDGE FIRMNESS TO THE DEVICE.
Claim 2
Dependent Claim
70 words
A RESILIENT LOAD SUPPORTING DEVICE COMPRISING: A PLURALITY OF VENTED RESILIENT BELLOWS SPRINGS SECURED IN A PATTERN; SAID SPRINGS BEING ENVELOPED WITHIN FLEXIBLE ENCLOSURE MEANS; AN UNDULATED POLYMERIC BAND GIRDLING THE PATTERN OF SPRINGS, AND INTERMESHED WITH THE BELLOWS OF THE OUTER MOST SPRINGS TO PROVIDE EDGE SUPPORT AND PERIPHERAL SPRING RETENTION, SAID BAMD BEIND COMPRESSIBLE UNDER LOAD BUT HAVING RESISTANCE TO COMPRESSION TO EFFECTUATE EDGE FIRMNESS TO THE DEVICE.
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) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |