US3352709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of repelling water from a transparent member
Assignee: Boeing Co
•
Filing: 1963-01-04
•
Granted: 1967-11-14
•
Expires: 1983-01-04
Abstract
No abstract record available.
Inventors
- 👤 Gunnar Keith
- 👤 Robert S Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:10
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; C03; C03C; C03C17/00; C03C17/28; C03C17/34; C03C17/3405
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD OF EFFECTING A HYDROPHOBIC COATING OF INCREASED STRENGTH AND LIFE-TIME UPON THE SURFACE OF A TRANSPARENT MEMBER, COMPRISING: (A) PREPARING A WATER-REPELLENT SOLUTION BY DISSOLVING TOGETHER IN A SUITABLE SOLVENT A COMBINATION OF THE FOLLOWING TWO CO-ACTING WATER-REPELLENT CHEMICAL SOLUTES: (1) A SOLUTE REPRESENTED GENERALLY AS GROUP A:
Claim 2
Independent Claim
50 words
A METHOD OF EFFECTING A HYDROPHOBIC COATING OF INCREASED STRENGTH AND LIFE-TIME UPON THE SURFACE OF A TRANSPARENT MEMBER, COMPRISING: (A) PREPARING A WATER-REPELLENT SOLUTION BY DISSOLVING TOGETHER IN A SUITABLE SOLVENT A COMBINATION OF THE FOLLOWING TWO CO-ACTING WATER-REPELLENT CHEMICAL SOLUTES: (1) A SOLUTE REPRESENTED GENERALLY AS GROUP A:
References Cited (Backward Citations)
US3123641A
Cited
US1502821A
Cited
US2314111A
Cited
US2356542A
Cited
US2982672A
Cited
US3147065A
Cited
US3048265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |