US3782327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for layering a liquid composition
Assignee: WR Grace and Co Conn
•
Filing: 1971-02-23
•
Granted: 1974-01-01
•
Expires: 1991-02-23
Abstract
Abstract The invention disclosed is directed to a device for layering a liquid photocurable composition. The device includes an elongate body having along its lower end a recess for spreading liquid composition, and includes arms attached adjacent recess sides for preventing spreading beyond sides of a region which may be traversed by the recess. When used in combination with an assembly also disclosed, the device forms liquid photocurable composition into layers of close tolerance thickness from which articles such as polymeric printing plates may be formed.
Inventors
- 👤 F Wessells
- 👤 J Conrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:18
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1170520A
Cited
US1490400A
Cited
US2739530A
Cited
US2845858A
Cited
US2964806A
Cited
US2963964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |