Patent US3333568A successfully refreshed from Google Patents.
US3333568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating webs
Assignee: EIDP Inc
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Filing: 1963-03-18
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Granted: 1967-08-01
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Przybilla Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:08
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A DEVICE FOR COATING WEBS WHICH COMPRISES: (1) A VESSEL FOR SUPPLYING AN OVERFLOW FILM OF FILMFORMING LIQUID COMPOSITION; (2) A ROTATABLE, GRAVITY OVERFLOW ROLL CLOSELY ADJACENT SAID VESSEL AND ADAPTED TO RECEIVE THE OVERFLOW FILM; AND (3) A WEB SUPPORT ROLLER ADJACENT SAID VESSEL, THERE BEING A NARROW SLIT BETWEEN THE SURFACE OF THE OVERFLOW ROLL AND SAID ROLLER THROUGH WHICH A WEB MAY PASS AND PICK UP A FILM OF LIQUID COMPOSITION FROM THE OVERFLOW ROLL, THE SLIT BEING SUCH THAT THE OVERFLOW FILM OF LIQUID COMPOSITION IS COMPLETELY TAKEN UP BY SAID WEB, THE AXIS OF SAID ROLLER BEING NOT BELOW THE AXIS OF THE GRAVITY OVERFLOW ROLL, SAID SLIT BEING BELOW THE UPPERMOST SURFACE OF SAID OVERFLOW ROLL.
Claim 2
Independent Claim
122 words
A DEVICE FOR COATING WEBS WHICH COMPRISES: (1) A VESSEL FOR SUPPLYING AN OVERFLOW FILM OF FILMFORMING LIQUID COMPOSITION; (2) A ROTATABLE, GRAVITY OVERFLOW ROLL CLOSELY ADJACENT SAID VESSEL AND ADAPTED TO RECEIVE THE OVERFLOW FILM; AND (3) A WEB SUPPORT ROLLER ADJACENT SAID VESSEL, THERE BEING A NARROW SLIT BETWEEN THE SURFACE OF THE OVERFLOW ROLL AND SAID ROLLER THROUGH WHICH A WEB MAY PASS AND PICK UP A FILM OF LIQUID COMPOSITION FROM THE OVERFLOW ROLL, THE SLIT BEING SUCH THAT THE OVERFLOW FILM OF LIQUID COMPOSITION IS COMPLETELY TAKEN UP BY SAID WEB, THE AXIS OF SAID ROLLER BEING NOT BELOW THE AXIS OF THE GRAVITY OVERFLOW ROLL, SAID SLIT BEING BELOW THE UPPERMOST SURFACE OF SAID OVERFLOW ROLL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |