Patent US2881101A successfully refreshed from Google Patents.
US2881101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for erasing inks and gelatine impressions on tracing and other papers
Assignee: Individual
•
Filing: 1955-09-12
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Granted: 1959-04-07
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Expires: 1975-09-12
Abstract
No abstract record available.
Inventors
- 👤 Ladeuze Maurice Jean Baptiste
- 👤 Toni Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:41
CPC Classifications
B; B43; B43L; B43L19/00; B43L19/0018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A METHOD OF ERASURE OF INK AND GELATINE IMPRESSIONS ON TRACING PAPER, ELECTROTYPE PRINTS AND FILMS, INCLUDING THE STOPS OF WETTING THE SURFACE WITH A LIQYID CONSISTING OF ALCOHOL AND ETHYLAMINE, RUBBING THE WETTED PORTION WITH A SLIGHTLY ABRASIVE PAD, AND THEREAFTER IMMEDIATELY DRYING WITH A CLEAN CLOTH.
Claim 2
Independent Claim
48 words
A METHOD OF ERASURE OF INK AND GELATINE IMPRESSIONS ON TRACING PAPER, ELECTROTYPE PRINTS AND FILMS, INCLUDING THE STOPS OF WETTING THE SURFACE WITH A LIQYID CONSISTING OF ALCOHOL AND ETHYLAMINE, RUBBING THE WETTED PORTION WITH A SLIGHTLY ABRASIVE PAD, AND THEREAFTER IMMEDIATELY DRYING WITH A CLEAN CLOTH.
References Cited (Backward Citations)
US1848849A
Cited
US997910A
Cited
US1209691A
Cited
US1924892A
Cited
US1617478A
Cited
US2210728A
Cited
US2317112A
Cited
US2686495A
Cited
US2759860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |