Patent US3515707A successfully refreshed from Google Patents.
US3515707A
Expired / Lapsed
US
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Metal derivatives of novel saturated heterocyclic polymers
Assignee: Honeywell International Inc
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Filing: 1967-02-16
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Granted: 1970-06-02
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Expires: 1987-02-16
Abstract
No abstract record available.
Inventors
- 👤 Herbert K Reimschuessel
- 👤 Franklin Boardman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:21
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/10; C07D211/14; C07D211/02; C08; C08F; C08F26/00; C08F26/02; C08F26/04; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 0
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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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |