Patent US3533771A successfully refreshed from Google Patents.
US3533771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle for drawing plate glass
Assignee: DORDELMANN FRIEDR WILHELM
•
Filing: 1967-12-15
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Granted: 1970-10-13
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Expires: 1987-12-15
Abstract
No abstract record available.
Inventors
- 👤 Otto Stehl
- 👤 Karl Flessa
- 👤 Friedrich Wilhelm Dordelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:48
CPC Classifications
C; C03; C03B; C03B15/00; C03B15/02; C03B15/06; Y; Y10; Y10S; Y10S239/00; Y10S239/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1593566A
Cited
US1739936A
Cited
US1841580A
Cited
US1901896A
Cited
US3397976A
Cited
US3341315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |