US3246998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impression material
Assignee: Individual
•
Filing: 1962-11-02
•
Granted: 1966-04-19
•
Expires: 1982-11-02
Abstract
No abstract record available.
Inventors
- 👤 Higashi Setsuo
- 👤 Prefecture Saitama
- 👤 Taguchi Kunio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:53
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
AN IMPRESSION COMPOSITION COMPRISING AN ALKANOL AMINE SALT OF ALGINIC ACID AN ALKALI METAL SALT OF CARBONIC ACID, SAID ALKALI METAL BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM, AND EACH ALKANOL RADICAL HAVING FROM 1 TO 2 CARBOM ATOMS.
Claim 2
Dependent Claim
42 words
AN IMPRESSION COMPOSITION COMPRISING AN ALKANOL AMINE SALT OF ALGINIC ACID AN ALKALI METAL SALT OF CARBONIC ACID, SAID ALKALI METAL BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM, AND EACH ALKANOL RADICAL HAVING FROM 1 TO 2 CARBOM ATOMS.
References Cited (Backward Citations)
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US2733157A
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US2021058A
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US2345255A
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US2584508A
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US2881161A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |