Patent US3527940A successfully refreshed from Google Patents.
US3527940A
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US
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Method and apparatus for irradiating fluent materials through a helical path
Assignee: Saint Gobain Techniques Nouvelles SA
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Filing: 1966-02-23
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Granted: 1970-09-08
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Expires: 1986-02-23
Abstract
No abstract record available.
Inventors
- 👤 Pierre Balanca
- 👤 Claudette Bernard
- 👤 Jean Taponier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:31
CPC Classifications
G; G21; G21K; G21K5/00; G21K5/02; B; B01; B01J; B01J19/00; B01J19/08; B01J19/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1735610A
Cited
US1768635A
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US2501290A
Cited
US2885557A
Cited
US3011662A
Cited
US2943203A
Cited
US3213280A
Cited
US3360646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |