US3262144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eraser cleaner
Assignee: Individual
•
Filing: 1964-01-27
•
Granted: 1966-07-26
•
Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Avila Blas Pedro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:12
CPC Classifications
B; B43; B43L; B43L21/00; B43L21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ERASER CLEANER COMPRISING A CASING CONSISTING OF FRONT AND BACK SIDES, ENDS, AND TOP AND BOTTOM, SAID TOP CONNECTED TO SAID BACK SIDE, FIRST AND SECOND SPRING BIASED MEANS PASSING THROUGH SAID TOP, AN ERASER HOLDER INCLUDING A BORE, SAID FIRST MEANS CONNECTED TO SAID ERASER HOLDER, SAID SECOND MEANS WHEN DEPRESSED PASSING THROUGH SAID BORE IN SAID ERASER HOLDER, AND A HORIZONTALLY POSITIONED SCREEN SECURED TO THE FRONT AND BACK SIDES AND ENDS OF SAID CASING ABOVE THE BOTTOM THEREOF.
Claim 2
Dependent Claim
82 words
AN ERASER CLEANER COMPRISING A CASING CONSISTING OF FRONT AND BACK SIDES, ENDS, AND TOP AND BOTTOM, SAID TOP CONNECTED TO SAID BACK SIDE, FIRST AND SECOND SPRING BIASED MEANS PASSING THROUGH SAID TOP, AN ERASER HOLDER INCLUDING A BORE, SAID FIRST MEANS CONNECTED TO SAID ERASER HOLDER, SAID SECOND MEANS WHEN DEPRESSED PASSING THROUGH SAID BORE IN SAID ERASER HOLDER, AND A HORIZONTALLY POSITIONED SCREEN SECURED TO THE FRONT AND BACK SIDES AND ENDS OF SAID CASING ABOVE THE BOTTOM THEREOF.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |