US3523646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid sprayer and method of spraying
Assignee: Rhone Poulenc Nederland BV
•
Filing: 1968-08-28
•
Granted: 1970-08-11
•
Expires: 1988-08-28
Abstract
No abstract record available.
Inventors
- 👤 John E Waldrum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:18
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/16; B64D1/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2979273A
Cited
US3084890A
Cited
US3061247A
Cited
US3197299A
Cited
US3191866A
Cited
US3189223A
Cited
US3341124A
Cited
US3337096A
Cited
US3445065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |