Patent US5769689A successfully refreshed from Google Patents.
Patent US3127630A successfully refreshed from Google Patents.
US3127630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fountain marker
Assignee: Individual
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Filing: 1963-01-24
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Granted: 1964-04-07
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Expires: 1983-01-24
Abstract
No abstract record available.
Inventors
- 👤 Mura Joseph L La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:44
CPC Classifications
B; B43; B43K; B43K8/00; B43K8/02; B43K8/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
A FOUNTAIN MARKER COMPRISING, A CYLINDRICAL CONTAINER CLOSED AT ITS LOWER END AND DEFINING AN INTERNAL RESERVOIR FOR THE STORAGE OF MARKING FLUID, A PISTON CHAMBER SECURED TO THE UPPER END OF SAID CONTAINER AND ENCLOSING A MOVABLE PISTON THEREIN, SAID CHAMBER OPEN AT ITS UPPER END FOR THE PASSAGE OF A MARKER WICK, SAID PISTON CHAMBER ALSO FORMED WITH AN ANNULAR CONSTRICTION INTERMEDIATE ITS TWO ENDS FOR LIMITING THE MOTION OF SAID PISTON AND TO AID IN LOCKING THE PISTON IN A MARKING POSITION, SAID WICK SECURED TO THE PISTON AT ITS UPPER END, AND A SINGLE SPHERICAL BALL ENCLOSED IN SAID PISTON CHAMBER FOR RETAINING THE PISTON IN A MARKING POSITION
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |