Patent US2980941A successfully refreshed from Google Patents.
US2980941A
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Cleaning sheet
Assignee: NCR Voyix Corp
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Filing: 1958-12-08
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Granted: 1961-04-25
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Expires: 1978-12-08
Abstract
No abstract record available.
Inventors
- 👤 Robert E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0039; A; A47; A47L; A47L13/00; A47L13/10; A47L13/16; A47L13/17; C11D17/04; C11D17/049; D; D06; D06M; D06M23/00; D06M23/12; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/64; D21H21/00; D21H21/50; D21H21/52; D21H21/54; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/249921; Y10T428/249953; Y10T428/249954; Y10T428/249994; Y10T428/249995; Y10T428/249997; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
AS AN ARTICLE OF MANUFACTURE, A CLEANING SHEET, INCLUDING AN ABSORBENT FABRIC WEB PROVIDED WITH A PROFUSION OF MINUTE PRESSURE-RUPTURABLE CAPSULES, EACH CAPSULE CONTAINING A LIQUID SOIL REMOVER, AND FURTHER PROVIDED WITH PARTICLES OF ADSORBENT MATERIAL FOR ADSORBING THE LIQUID AND SOIL REMOVED THEREBY, THE CLEANING SHEET BY BEING RUBBED AGAINST THE SURFACE OF AN ARTICLE TO BE
Claim 2
Dependent Claim
58 words
AS AN ARTICLE OF MANUFACTURE, A CLEANING SHEET, INCLUDING AN ABSORBENT FABRIC WEB PROVIDED WITH A PROFUSION OF MINUTE PRESSURE-RUPTURABLE CAPSULES, EACH CAPSULE CONTAINING A LIQUID SOIL REMOVER, AND FURTHER PROVIDED WITH PARTICLES OF ADSORBENT MATERIAL FOR ADSORBING THE LIQUID AND SOIL REMOVED THEREBY, THE CLEANING SHEET BY BEING RUBBED AGAINST THE SURFACE OF AN ARTICLE TO BE
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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |