US2799787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic transmitter apparatus
Assignee: Siemens Reiniger Werke AG
•
Filing: 1953-07-07
•
Granted: 1957-07-16
•
Expires: 1973-07-07
Abstract
No abstract record available.
Inventors
- 👤 Guttner Werner
- 👤 Bastir Robert
- 👤 Pickel Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:09
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/0238; B06B1/0246; B06B1/0253; B06B2201/00; B06B2201/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1734975A
Cited
US2055090A
Cited
US2320876A
Cited
US2372956A
Cited
US2609510A
Cited
US2594841A
Cited
US2444349A
Cited
US2647983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |