Patent US4376688A successfully refreshed from Google Patents.
US3280237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of pressing composite consolidated articles
Assignee: Weyerhaeuser Co
•
Filing: 1963-04-22
•
Granted: 1966-10-18
•
Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 Robert L Corbin
- 👤 Joseph A Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:56
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A METHOD OF FORMING A PANEL OR THE LIKE FROM A MATE FORMED OF LIGNOCELLULOSIC MATERIAL AND A THERMOSETTING RESIN BINDER, COMPRISING THE STEPS OF: COMPRESSING THE MAT BETWEEN A PAIR OF HEATED PRESS PLATENS; INJECTING SUPERHEATED STEAM INTO THE MAT WHILE SAID MAT IS BETWEEN SAID HEATED PLATES FOR A SUFFICIENT PERIOD OF TIME TO PLASTICIZE SAID MAT; AND, FURTHER COMPRESSING THE MAT BETWEEN THE HEATED PLATENS TO THE DESIRED THICKNESS FOR A SUFFICIENT PERIOD
Claim 2
Independent Claim
76 words
A METHOD OF FORMING A PANEL OR THE LIKE FROM A MATE FORMED OF LIGNOCELLULOSIC MATERIAL AND A THERMOSETTING RESIN BINDER, COMPRISING THE STEPS OF: COMPRESSING THE MAT BETWEEN A PAIR OF HEATED PRESS PLATENS; INJECTING SUPERHEATED STEAM INTO THE MAT WHILE SAID MAT IS BETWEEN SAID HEATED PLATES FOR A SUFFICIENT PERIOD OF TIME TO PLASTICIZE SAID MAT; AND, FURTHER COMPRESSING THE MAT BETWEEN THE HEATED PLATENS TO THE DESIRED THICKNESS FOR A SUFFICIENT PERIOD
References Cited (Backward Citations)
CA553432A
Cited
US1119560A
Cited
US2041377A
Cited
US2202964A
Cited
US2339458A
Cited
US2581652A
Cited
US2581222A
Cited
US2550687A
Cited
US3080612A
Cited
US3055057A
Cited
US3044922A
Cited
US3058162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |