US2790741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonded fibrous products and method of manufacture
Assignee: Owens Corning
•
Filing: 1952-09-30
•
Granted: 1957-04-30
•
Expires: 1972-09-30
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Sonneborn
- 👤 Thomas E Philipps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:56
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/587; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2926; Y10T442/2992
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD OF PRODUCING A RESIN BONDED FIBROUS GLASS MAT COMPRISING CHOPPING AND COLLECTING FIBROUS GLASS MATERIAL IN THE FORM OF AN ADVANCING MAT, DISTRIBUTING ON SAID ADVANCING MAT A POWDERED HEAT SETTING RESINOUS BINDER, MECHANICALLY DISRUPTING THE GLASS MATERIAL WITHIN SAID ADVANCING MAT TO FORM AN INTIMATE MIXTURE OF SAID FIBROUS GLASS MATERIAL AND SAID POWDERED RESINOUS
Claim 2
Independent Claim
58 words
A METHOD OF PRODUCING A RESIN BONDED FIBROUS GLASS MAT COMPRISING CHOPPING AND COLLECTING FIBROUS GLASS MATERIAL IN THE FORM OF AN ADVANCING MAT, DISTRIBUTING ON SAID ADVANCING MAT A POWDERED HEAT SETTING RESINOUS BINDER, MECHANICALLY DISRUPTING THE GLASS MATERIAL WITHIN SAID ADVANCING MAT TO FORM AN INTIMATE MIXTURE OF SAID FIBROUS GLASS MATERIAL AND SAID POWDERED RESINOUS
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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) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |