US3289371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced composites and method for producing the same
Assignee: Owens Corning
•
Filing: 1961-09-01
•
Granted: 1966-12-06
•
Expires: 1981-09-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Pearson
- 👤 Homer W Duffee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:39
CPC Classifications
E; E04; E04D; E04D7/00; B; B28; B28B; B28B19/00; B28B19/0092; B28C; B28C5/00; B28C5/40; B28C5/404; E04F; E04F13/00; E04F13/02; E04F13/04; E04F13/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A GYPSUM DECK HAVING A REINFORCED UPPER SURFACE COMPRISING: SUPPORTING MEMBERS, A BASE FOR SAID GYPSUM DECK EXTENDING BETWEEN SAID SUPPORTING MEMBERS, A LAYER OF GYPSUM COVERING SAID SUPPORTING MEMBERS AND BASE, GLASS FIBERS DISTRIBUTED AND EMBEDDED IN A RELATIVELY THIN REGION AT THE EXPOSED SURFACE OF SAID GYPSUM IN SUFFICIENT CONCENTRATION AS REINFORCEMENT TO IMPART STRENGTH TO SAID SURFACE AGAINST CRACKING.
Claim 2
Dependent Claim
62 words
A GYPSUM DECK HAVING A REINFORCED UPPER SURFACE COMPRISING: SUPPORTING MEMBERS, A BASE FOR SAID GYPSUM DECK EXTENDING BETWEEN SAID SUPPORTING MEMBERS, A LAYER OF GYPSUM COVERING SAID SUPPORTING MEMBERS AND BASE, GLASS FIBERS DISTRIBUTED AND EMBEDDED IN A RELATIVELY THIN REGION AT THE EXPOSED SURFACE OF SAID GYPSUM IN SUFFICIENT CONCENTRATION AS REINFORCEMENT TO IMPART STRENGTH TO SAID SURFACE AGAINST CRACKING.
References Cited (Backward Citations)
US1398079A
Cited
US1804389A
Cited
US1674628A
Cited
US1864025A
Cited
US1763469A
Cited
US2174581A
Cited
US2233054A
Cited
US2425883A
Cited
US2330810A
Cited
US2614058A
Cited
US2773287A
Cited
US2981308A
Cited
US2836529A
Cited
US3084088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |