US2843370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic ampul drying machine
Assignee: F Hoffmann La Roche AG
•
Filing: 1956-01-16
•
Granted: 1958-07-15
•
Expires: 1976-01-16
Abstract
No abstract record available.
Inventors
- 👤 Engel Carl Emil
- 👤 Harris Sidney Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:24
CPC Classifications
F; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US784622A
Cited
US745674A
Cited
US834275A
Cited
US2105795A
Cited
US2573217A
Cited
US2532604A
Cited
US2590149A
Cited
US2646769A
Cited
US2599721A
Cited
US2647787A
Cited
US2726771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |