US3772126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for making fiberglass grating
Assignee: M & M Intern Plastics Inc
•
Filing: 1971-10-21
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Granted: 1973-11-13
•
Expires: 1991-10-21
Abstract
Abstract Fiberglass strands are wetted with catalyzed resin and are passed to movable arms of a weaving machine which deposits two sets of spaced parallel strands in a slotted form so that the sets of strands cross each other at an angle. The formed grating is ejected from the form into a pre-heated mold of a press, where the grating is compressed and cured.
Inventors
- 👤 R Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:45
CPC Classifications
D; D04; D04H; D04H3/00; B; B29; B29D; B29D28/00; B29D28/005
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
28 words
The apparatus as defined in claim 1 further comprising means for treating the fiberglass strands with catalyzed resin prior to handling of the strands by said weaving arms.
Claim 2
Dependent Claim
32 words
The apparatus as defined in claim 3 further comprising a molding press having a pre-heated mold in which the grating formed in said form is deposited for purposes of curing and compression.
Claim 3
Dependent Claim
22 words
The apparatus as defined in claim 1 further comprising means provided in said form for ejecting a formed grating from said slots.
References Cited (Backward Citations)
US3086576A
Cited
US3296055A
Cited
US3551237A
Cited
US3425884A
Cited
US3692607A
Cited
US3645833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |