US2841501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver polish
Assignee: Individual
•
Filing: 1957-04-17
•
Granted: 1958-07-01
•
Expires: 1977-04-17
Abstract
No abstract record available.
Inventors
- 👤 James G Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:51
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/34; C11D3/3427; C11D3/02; C11D3/12; C11D3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A SILVER POLISH CONSISTING ESSENTIALLY OF A MIXTURE OF ABRASIVE POWEDER AND AN N-ALKANE-1-THIOL, THE ALKANE BEING A C12-20 STRAIGHT CHAIN RADICAL.
Claim 2
Dependent Claim
22 words
A SILVER POLISH CONSISTING ESSENTIALLY OF A MIXTURE OF ABRASIVE POWEDER AND AN N-ALKANE-1-THIOL, THE ALKANE BEING A C12-20 STRAIGHT CHAIN RADICAL.
References Cited (Backward Citations)
US2691593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |