US2607359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removing adhesive with an adhesive destructive compound
Assignee: PAUL LEWIS LAB Inc
•
Filing: 1946-05-23
•
Granted: 1952-08-19
•
Expires: 1966-05-23
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Oesting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:08
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/12; D06L1/14; C; C09; C09D; C09D9/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
A METHOD OF REMOVING A MATERIAL IN THE NATURE OF AN ADHESIVE OF THE CLASS CONSISTING OF STARCHES AND PROTEINS FROM A SUPPORTING WALL SURFACE TO WHICH SAID MATERIAL IS ADHESIVELY BOUND, SUCH METHOD COMPRISING EXTERNALLY COATING THE EXPOSED MATERIAL WITH AN AQUEOUS SOLUTION OF AN ENZYME AND A WETTING AGENT AND REMOVING SAID MATERIAL FROM THE WALL SURFACE AFTER A SUFFICIENT LAPSE OF TIME FOR THE ENZYME TO DESTROY THE BOND BETWEEN THE WALL SURFACE AND SUCH MATERIAL AFTER PENETRATING THROUGH THE MATERIAL WITH THE ASSISTANCE OF THE WETTING AGENT.
References Cited (Backward Citations)
US525823A
Cited
US1590663A
Cited
US1882279A
Cited
US2020647A
Cited
US2052884A
Cited
US2029970A
Cited
US2369256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |