Patent US3078294A successfully refreshed from Google Patents.
US3078294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making pyrocarbonate esters
Assignee: Dow Chemical Co
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Filing: 1961-03-17
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Granted: 1963-02-19
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Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Howe
- 👤 Leo R Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:18
CPC Classifications
C; C07; C07C; C07C68/00; C07C68/06; C07C69/00; C07C69/96
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
A PROCESS FOR MAKING PYROCARBONATE ESTERS WHICH
Claim 2
Dependent Claim
7 words
A PROCESS FOR MAKING PYROCARBONATE ESTERS WHICH
Claim 3
Dependent Claim
49 words
IN A PROCESS FOR BONDING WOOD AND WOOD PRODUCTS BY COMPRISES REACTING BY CONTACTING ONE MOLE OF PHOSGENE POLYMERIZING IN CONTACT THEREWITH A POLYMERIZABLE COMWITH ABOUT TWO MOLES OF A CARBONATE OF THE GENERAL FORPOSITION, THE IMPROVEMENT WHEREIN SAID COMPOSITION IS A MULA PARTIALLY POLYMERIZED MIXTURE CONSISTING ESSENTIALLY OF
Claim 4
Dependent Claim
49 words
IN A PROCESS FOR BONDING WOOD AND WOOD PRODUCTS BY COMPRISES REACTING BY CONTACTING ONE MOLE OF PHOSGENE POLYMERIZING IN CONTACT THEREWITH A POLYMERIZABLE COMWITH ABOUT TWO MOLES OF A CARBONATE OF THE GENERAL FORPOSITION, THE IMPROVEMENT WHEREIN SAID COMPOSITION IS A MULA PARTIALLY POLYMERIZED MIXTURE CONSISTING ESSENTIALLY OF
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |