US2744830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shading composition for greenhouses
Assignee: Uniroyal Inc
•
Filing: 1952-07-09
•
Granted: 1956-05-08
•
Expires: 1972-07-09
Abstract
No abstract record available.
Inventors
- 👤 Richard H F Manske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:19
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C2217/00; C03C2217/20; C03C2217/29; C03C2218/00; C03C2218/10; C03C2218/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A SHADING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF 100 PARTS OF 30-35% HYDROUS AMMONIA, FROM 25 TO 125 PARTS OF TERTIARY ZINC ORTHO-PHOSPHATE, AND FROM 0.1 TO 3% OF AN ALKALI METAL SALT OF METASILICIC ACID, CHARACTERIZED BY THE ABILITY TO DEPOSIT A TURBID FILM UPON DRYING, SUCH FILM BEING ADHERENT TO GLASS.
Claim 2
Dependent Claim
55 words
A SHADING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF 100 PARTS OF 30-35% HYDROUS AMMONIA, FROM 25 TO 125 PARTS OF TERTIARY ZINC ORTHO-PHOSPHATE, AND FROM 0.1 TO 3% OF AN ALKALI METAL SALT OF METASILICIC ACID, CHARACTERIZED BY THE ABILITY TO DEPOSIT A TURBID FILM UPON DRYING, SUCH FILM BEING ADHERENT TO GLASS.
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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |