US3022202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaning surfaces
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1957-09-09
•
Granted: 1962-02-20
•
Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 William E Mccown
- 👤 James W Mcauley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:36
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12; B08B3/123
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A METHOD OF CLEANING SHEETS COMPRISING THE STEPS OF MOVING SAID SHEETS ALONG A SUBSTANTIALLY CLOSED PATH THROUGH A BODY OF AN ENERGY TRANSMITTING MEDIUM, DIRECTING VIBRATORY ENERGY THROUGH SAID MEDIUM AT ONE POINT ALONG SAID PATH IN A DIRECTION SUBSTANTIALLY NORMAL TO THE PATH AT THAT POINT, AND DIRECTING ADDITIONAL VIBRATORY ENERGY THROUGH SAID MEDIUM AT ANOTHER POINT ALONG SAID PATH IN A DIRECTION SUBSTANTIALY NORMAL TO THE PATH
References Cited (Backward Citations)
US2831785A
Cited
DE91996C
Cited
US1299624A
Cited
US1465085A
Cited
US1544506A
Cited
US2248662A
Cited
US2554701A
Cited
US2609826A
Cited
US2702260A
Cited
US2811163A
Cited
US2673835A
Cited
US2784119A
Cited
US2802758A
Cited
US2814575A
Cited
US2864592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |