Patent US3013118A successfully refreshed from Google Patents.
US3133853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient composite polyurethane structures
Assignee: EIDP Inc
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Filing: 1958-09-08
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Granted: 1964-05-19
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Expires: 1978-09-08
Abstract
No abstract record available.
Inventors
- 👤 Roger E Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:52
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/34; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S297/00; Y10S297/01; Y10S5/00; Y10S5/948; Y10S5/953; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/24521
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A RESILIENT CELLULAR POLYURETHANE STRUCTURE HAVING INCORPORATED THEREWITH AN ELASTOMERIC SOLID NON-CELLULAR POLYURETHANE NON-PLANAR SUB-STRUCTURE ESSETNIALLY CO-EXTENSIVE WITH AT LEAST 75% OF ONE SURFACE OF SAID CELLULAR POLYURETHANE STRUCTURE, SAID NON-CELLULAR POLYURETHANE SUB-STRUCUTRE BEING AT LEAST 20 MILS THICK AND SAID NONCELLULAR POLYURETHANE SUB-STRUCTURE BEING POSITIONED SO THAT IT WILL BE PARTIALLY COMPRESSED WHEN SURFACE PRESSURE IS APPLIED TO SAID STRUCTURE.
Claim 2
Dependent Claim
61 words
A RESILIENT CELLULAR POLYURETHANE STRUCTURE HAVING INCORPORATED THEREWITH AN ELASTOMERIC SOLID NON-CELLULAR POLYURETHANE NON-PLANAR SUB-STRUCTURE ESSETNIALLY CO-EXTENSIVE WITH AT LEAST 75% OF ONE SURFACE OF SAID CELLULAR POLYURETHANE STRUCTURE, SAID NON-CELLULAR POLYURETHANE SUB-STRUCUTRE BEING AT LEAST 20 MILS THICK AND SAID NONCELLULAR POLYURETHANE SUB-STRUCTURE BEING POSITIONED SO THAT IT WILL BE PARTIALLY COMPRESSED WHEN SURFACE PRESSURE IS APPLIED TO SAID STRUCTURE.
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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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |