Patent US3354121A successfully refreshed from Google Patents.
US3354121A
Expired / Lapsed
US
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Polymers of polyhedral boron compounds
Assignee: EIDP Inc
•
Filing: 1963-02-20
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Granted: 1967-11-21
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Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter H Knoth
- 👤 Rudolph H Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:58
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/08; C08G63/00; C08G63/68; Y; Y10; Y10S; Y10S149/00; Y10S149/12; Y10S149/121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A BORON-CONTAINING POLYMER CONSISTING ESSENTIALLY OF RECURRING UNITS OF THE FORMULA
Claim 2
Dependent Claim
11 words
A BORON-CONTAINING POLYMER CONSISTING ESSENTIALLY OF RECURRING 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 |