US3096958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbed sheet structure
Assignee: 3M Co
•
Filing: 1959-01-22
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Granted: 1963-07-09
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Expires: 1979-01-22
Abstract
No abstract record available.
Inventors
- 👤 Robert D Koontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:05
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/001; B29D99/0014; B29C; B29C69/00; B29C69/02; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/081; B29D99/0025; B29D99/0028; B64; B64C; B64C3/00; B64C3/26; B29C43/00; B29C45/00; B29C45/02; B29K; B29K2105/00; B29K2105/04; B29K2105/06; B29K2105/08; B29K2105/0854; B29L; B29L2031/00; B29L2031/30; B29L2031/3076; B29L2031/3085; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
A REINFORCED PLASTIC WING SECTION COMPRISING TOP AND BOTTOM REINFORCED PLASTIC SKINS JOINED TO ONE ANOTHER BY AT LEAST ONE WING-RIB, EACH SELF-SUSTAINING SKIN COMPRISING AT LEAST ONE LAYER OF RESINOUS SHEET MATERIAL REINFORCED WITH CONTINUOUS, NON-WOVEN, LINEALLY ALIGNED FILAMENTS, AND HAVING AT LEAST ONE RIB INTEGRALLY FORMED THEREWITH AND FORMING A PORTION OF THE WING-RIB, SAID RIB BEING COMPOSED OF A MOLDED DISCONTINUOUS FIBER REINFORCED RESIN STRONGLY ADHERENTLY BONDED TO SAID SKIN AND HAVING REINFORCING FIBERS THEREIN INTIMATELY INTER-
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |