US2533145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereotype mat
Assignee: Burgess Cellulose Co
•
Filing: 1948-04-13
•
Granted: 1950-12-05
•
Expires: 1968-04-13
Abstract
No abstract record available.
Inventors
- 👤 Schorger Arlie William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:58
CPC Classifications
B; B41; B41N; B41N11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A STEREOTYPE MAT OF INTER-BONDED FELTED FIBERS AND CONTAINING IN THE BODY THEREOF A WATER INSOLUBLE HYDROXYALKYL ETHER OF CELLULOSE FROM ETHYL TO PROPYL INCLUSIVE, THE PROPORTION OF SAID ETHER BEING SUCH THAT THERE ARE FROM 0.25 TO 1.5 HYDROXYALKYL RADICALS TO EACH UNIT OF CELLULOSE.
Claim 2
Dependent Claim
46 words
A STEREOTYPE MAT OF INTER-BONDED FELTED FIBERS AND CONTAINING IN THE BODY THEREOF A WATER INSOLUBLE HYDROXYALKYL ETHER OF CELLULOSE FROM ETHYL TO PROPYL INCLUSIVE, THE PROPORTION OF SAID ETHER BEING SUCH THAT THERE ARE FROM 0.25 TO 1.5 HYDROXYALKYL RADICALS TO EACH UNIT OF CELLULOSE.
References Cited (Backward Citations)
US2041092A
Cited
FR790215A
Cited
US2109295A
Cited
US2136296A
Cited
US2083744A
Cited
GB482942A
Cited
US2297635A
Cited
US2400078A
Cited
US2398047A
Cited
US2362217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |