US3017895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flood control system
Assignee: Individual
•
Filing: 1958-02-26
•
Granted: 1962-01-23
•
Expires: 1978-02-26
Abstract
No abstract record available.
Inventors
- 👤 Portner Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:44
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/22; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/264; Y10T137/4238; Y10T137/4245; Y10T137/4259; Y10T137/8593; Y10T137/85978; Y10T137/86171
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2001271A
Cited
US2047734A
Cited
US2305154A
Cited
US2347544A
Cited
US2421066A
Cited
US2431640A
Cited
US2549204A
Cited
US2867039A
Cited
US2792011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |