US3901726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic watch cleaning method
Assignee: Individual
•
Filing: 1974-04-09
•
Granted: 1975-08-26
•
Expires: 1994-04-09
Abstract
Abstract A process for the removal of foreign matter from a watch mechanism, comprising the steps of immersing the watch mechanism in a receptacle containing a solvent of clear petroleum hydrocarbon distillate, an anionic, cationic or non-ionic detergent and anhydrous ammonia, and subjecting the solution and watch mechanism to ultrasonic waves.
Inventors
- 👤 Grady K Snearly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:36
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/08; B08B3/10; B08B3/12; C; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/06; C11D2111/00; C11D2111/40; C11D2111/46
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
59 words
A PROCESS FOR THE REMOVAL OF FOREIGN MATTER FROM A WATCH MECHANISM, COMPRISING THE STEPS OF IMMERSING A WATCH MECHANISM IN A RECEPTACLE CONTAINING A LIQUID CLEANING SOLUTION CONSISTING ESSENTIALLY OF A CLEAR HYDROCARBON DISTILLATE SOLVENT ANHYDROUS AMMONIA AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF ANIONIC, CATIONIC AND NON-IONIC DETERGENTS AND SUBJECTING SAID SOLUTION TO ULTRASONIC WAVES.
Claim 2
Dependent Claim
59 words
A PROCESS FOR THE REMOVAL OF FOREIGN MATTER FROM A WATCH MECHANISM, COMPRISING THE STEPS OF IMMERSING A WATCH MECHANISM IN A RECEPTACLE CONTAINING A LIQUID CLEANING SOLUTION CONSISTING ESSENTIALLY OF A CLEAR HYDROCARBON DISTILLATE SOLVENT ANHYDROUS AMMONIA AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF ANIONIC, CATIONIC AND NON-IONIC DETERGENTS AND SUBJECTING SAID SOLUTION TO ULTRASONIC WAVES.
Claim 3
Dependent Claim
28 words
A process according to claim 1 wherein the detergent is isopropyl amine dodecyl benzene sulfonate present in an amount between 1 and 2 ounces per gallon of solvent.
Claim 4
Dependent Claim
18 words
A process according to claim 1 wherein the ultrasonic waves have a frequency between 15 and 40 kilohertz.
Claim 5
Dependent Claim
18 words
A process according to claim 3 wherein said clear hydrocarbon distillate is a water-white liquid petroleum hydrocarbon distillate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |