Patent US3188668A successfully refreshed from Google Patents.
US3188668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Best available copy
Assignee: —
•
Filing: —
•
Granted: 1965-06-15
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Expires: 1982-06-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:10
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/16; E04H4/1609
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A SWIMMING POOL CLEANING DEVICE COMPRISING A FRAME HAVING A FRONT END, A SCREEN MOUNTED WITHIN SAID FRAME, ROLLING MEANS MOUNTED ON SAID FRAME AT THE FRONT END THEREOF, AND SCRAPING MEANS PIVOTALLY MOUNTED AT THE FRONT END OF SAID FRAME AND EXTENDING FORWARDLY THEREFROM.
Claim 2
Dependent Claim
45 words
A SWIMMING POOL CLEANING DEVICE COMPRISING A FRAME HAVING A FRONT END, A SCREEN MOUNTED WITHIN SAID FRAME, ROLLING MEANS MOUNTED ON SAID FRAME AT THE FRONT END THEREOF, AND SCRAPING MEANS PIVOTALLY MOUNTED AT THE FRONT END OF SAID FRAME AND EXTENDING FORWARDLY THEREFROM.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |