US3354103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequestering ion exchange resins which are polyimine reaction products
Assignee: Individual
•
Filing: 1964-04-06
•
Granted: 1967-11-21
•
Expires: 1984-04-06
Abstract
No abstract record available.
Inventors
- 👤 Le Roy A White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:15
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A CROSSLINKED SEQUESTERING RESIN COMPRISING THE REACTION PRODUCT OF: (A) A POLYIMINE CONSISTING ESSENTIALLY OF UNITS OF THE FORMULA
Claim 2
Dependent Claim
19 words
A CROSSLINKED SEQUESTERING RESIN COMPRISING THE REACTION PRODUCT OF: (A) A POLYIMINE CONSISTING ESSENTIALLY OF UNITS OF THE FORMULA
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |