US3095859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing instrument
Assignee: David Kahn Inc
•
Filing: 1958-08-15
•
Granted: 1963-07-02
•
Expires: 1978-08-15
Abstract
No abstract record available.
Inventors
- 👤 Levy Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:30
CPC Classifications
B; B43; B43K; B43K7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
AN INK CARTRIDGE COMPRISING AN ELONGATED ORGANIC PLASTIC TUBE HAVING A BALL POINT WRITING TIP AT ONE END THEREOF, SAID TUBE HAVING AN INTERMEDIATE PORTION INCLUDING A SEAT FOR A RETRACT SPRING, SAID SEAT COMPRISING AT
Claim 2
Dependent Claim
36 words
AN INK CARTRIDGE COMPRISING AN ELONGATED ORGANIC PLASTIC TUBE HAVING A BALL POINT WRITING TIP AT ONE END THEREOF, SAID TUBE HAVING AN INTERMEDIATE PORTION INCLUDING A SEAT FOR A RETRACT SPRING, SAID SEAT COMPRISING AT
References Cited (Backward Citations)
US352656A
Cited
US1727896A
Cited
GB641595A
Cited
US2803695A
Cited
FR1065288A
Cited
US2692580A
Cited
US2800881A
Cited
US2778337A
Cited
AT186165B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |