US2844073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Launching device
Assignee: Royal Industries Co Ltd
•
Filing: 1954-04-16
•
Granted: 1958-07-22
•
Expires: 1974-04-16
Abstract
No abstract record available.
Inventors
- 👤 Re Carlo
- 👤 George F Rice
- 👤 Leigh F Birkeland
- 👤 Victor T Koozin
- 👤 Garnett C Duncan
- 👤 Kinda Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:27
CPC Classifications
F; F41; F41A; F41A19/00; F41A19/58; F41A19/64; F41A19/65; F41F; F41F3/00; F41F3/04; F41F3/06; F41F3/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL62297C
Cited
US2736260A
Cited
FR863443A
Cited
US2297006A
Cited
US2496316A
Cited
US2458476A
Cited
US2609730A
Cited
US2630740A
Cited
US2564695A
Cited
US2763189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |