US3072536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-shaving lotion and method
Assignee: Dow Chemical Co
•
Filing: 1959-04-08
•
Granted: 1963-01-08
•
Expires: 1979-04-08
Abstract
No abstract record available.
Inventors
- 👤 David J Pye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:10
CPC Classifications
A; A61; A61Q; A61Q9/00; A61Q9/02; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A METHOD OF SHAVING WHICH COMPRISES THE STEPS OF APPLYING TO THE FACE A FILM OF AN AQUEOUS SOLUTION OF A WATER-SOLUBLE, HIGH-MOLECULAR-WEIGHT POLYMER, SAID POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 500,000 AND HAVING SELECTED FROM THE GROUP CONSISTING OF POLYACRYLAMIDE, C0-POLYMERS OF ACRYLAMIDE WITH UP TO ABOUT 50 MOLE PERCENT OF ACRYLIC ACID, AND THE AMMONIUM AND ALKALI METAL SALTS OF SUCH CO-POLYMERS, AND THEREAFTER SHAVING WITH A RAZOR.
Claim 2
Independent Claim
73 words
A METHOD OF SHAVING WHICH COMPRISES THE STEPS OF APPLYING TO THE FACE A FILM OF AN AQUEOUS SOLUTION OF A WATER-SOLUBLE, HIGH-MOLECULAR-WEIGHT POLYMER, SAID POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 500,000 AND HAVING SELECTED FROM THE GROUP CONSISTING OF POLYACRYLAMIDE, C0-POLYMERS OF ACRYLAMIDE WITH UP TO ABOUT 50 MOLE PERCENT OF ACRYLIC ACID, AND THE AMMONIUM AND ALKALI METAL SALTS OF SUCH CO-POLYMERS, AND THEREAFTER SHAVING WITH A RAZOR.
References Cited (Backward Citations)
NL62708C
Cited
DE703238C
Cited
US2326078A
Cited
US2227321A
Cited
DE731361C
Cited
DE873891C
Cited
DE880046C
Cited
US2754291A
Cited
US2798047A
Cited
GB796319A
Cited
US2831841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |