US3354022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-repellant surface
Assignee: EIDP Inc
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Filing: 1964-03-31
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Granted: 1967-11-21
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Expires: 1984-03-31
Abstract
No abstract record available.
Inventors
- 👤 Dettre Robert Harold
- 👤 Jackson Harold Leonard
- 👤 Jr Rulon Edward Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:14
CPC Classifications
B; B08; B08B; B08B17/00; B08B17/02; B08B17/06; B08B17/065; B29; B29C; B29C59/00; B29C59/02; B29C59/022; C; C03; C03C; C03C12/00; C03C17/00; C03C17/006; C03C17/007; C09; C09K; C09K3/00; C09K3/18; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2827/00; B29K2827/12; B29K2995/00; B29K2995/0037; B29K2995/0093; C03C2217/00; C03C2217/40; C03C2217/43; C03C2217/44; C03C2217/445; C03C2217/46; C03C2217/47; C03C2217/475; C03C2217/48; C03C2217/70; C03C2217/76; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457; Y10T428/24595; Y10T428/24603
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A SOLID COMPOSITION HAVING PROJECTIONS EXTENDING FROM THE SURFACE THEREOF, SAID PROJECTIONS HAVING AN AVERAGE DISTANCE OF NOT GREATER THAN 100 MICRONS BETWEEN ADJACENT PROJECTIONS AND HAVING AN AVERAGE HEIGHT OF AT LEAST .5 TIMES THE AVERAGE DISTANCE, SAID PROJECTIONS SPACED SUCH THAT THE AIR CONTENT OF THE SURFACE OF THE COMPOSITION IS AT LEAST 60% AIR, SAID PROJECTIONS SHAPED SUCH THAT A LINE DRAWN TANGENT TO THE SIDES THEREOF MAKES AN ANGLE BETWEEN THE TANGENT AND THE PLANE OF SAID SURFACE OF AT LEAST 80* WHEN MEASURED THROUGH THE PROJECTION, SAID SURFACE OF SAID PROJECTION HAVING AN INTRINSIC ADVANCING WATER CONTACT ANGLE OF GREATER THAN 90* AND AN INTRINSIC RECEDING WATER CONTACT ANGLE OF AT LEAST 75*, SAID SURFACE HAVING A LOWER TILT ANGLE FOR WATER THAN THE CORRESPONDING SMOOTH SURFACE.
Claim 2
Dependent Claim
132 words
A SOLID COMPOSITION HAVING PROJECTIONS EXTENDING FROM THE SURFACE THEREOF, SAID PROJECTIONS HAVING AN AVERAGE DISTANCE OF NOT GREATER THAN 100 MICRONS BETWEEN ADJACENT PROJECTIONS AND HAVING AN AVERAGE HEIGHT OF AT LEAST .5 TIMES THE AVERAGE DISTANCE, SAID PROJECTIONS SPACED SUCH THAT THE AIR CONTENT OF THE SURFACE OF THE COMPOSITION IS AT LEAST 60% AIR, SAID PROJECTIONS SHAPED SUCH THAT A LINE DRAWN TANGENT TO THE SIDES THEREOF MAKES AN ANGLE BETWEEN THE TANGENT AND THE PLANE OF SAID SURFACE OF AT LEAST 80* WHEN MEASURED THROUGH THE PROJECTION, SAID SURFACE OF SAID PROJECTION HAVING AN INTRINSIC ADVANCING WATER CONTACT ANGLE OF GREATER THAN 90* AND AN INTRINSIC RECEDING WATER CONTACT ANGLE OF AT LEAST 75*, SAID SURFACE HAVING A LOWER TILT ANGLE FOR WATER THAN THE CORRESPONDING SMOOTH SURFACE.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |