US3723235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced sheet material and method for making the same
Assignee: Individual
•
Filing: 1970-12-21
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Granted: 1973-03-27
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Expires: 1990-12-21
Abstract
Abstract Disclosed is a reinforced sheet material or scrim which consists of filaments extending in wave forms along the material. The filaments preferably extend in overlapping paths along certain portions of the material and along paths of progressively decreasing amplitude on either side of the uniform portion, but with about the same frequency as in the uniform portion, towards the edges of the material, slitting points between adjacent uniform portions, or lap reinforcements. The scrim material may be self-reinforced and may also include linear extending filaments and/or laminated substrates.
Inventors
- 👤 E Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:26
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/05; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/184; Y10T442/191; Y10T442/197
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |