US3421627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: ARLON NV
•
Filing: 1965-08-30
•
Granted: 1969-01-14
•
Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Lambertus J A Lammers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:42
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/28; B03C1/282; B01; B01D; B01D35/00; B01D35/06; B01D35/14; B01D35/143; B01D35/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1335955A
Cited
US2387368A
Cited
US2583522A
Cited
US2795333A
Cited
US2937754A
Cited
US3106527A
Cited
US3224583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |