Patent US3254453A successfully refreshed from Google Patents.
US3254453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing device
Assignee: W J DENNIS AND CO
•
Filing: 1964-06-11
•
Granted: 1966-06-07
•
Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 John F Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:52
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2316
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
A DEVICE TO SEAL THE JUNCTION BETWEEN THE EDGES OF A GENERALLY PLANAR DOOR AND AN ADJACENT THRESHOLD, SAID DEVICE COMPRISING: AN ELONGATE BODY PORTION SECURED TO THE PLANAR SURFACE OF SAID DOOR ALONG A LINE SPACED FROM SAID THRESHOLD, SAID BODY PORTION EXTENDING TOWARD SAID THRESOLD IN SPACED RELATIONSHIP TO SAID PLANAR SURFACE AND COOPERATING THEREWITH TO DEFINE AN ELONGATE CHAMBER, ELONGATE MOVABLE RETAINER MEANS WITHIN SAID CHAMBER, AND A FLEXIBLE ELONGATE WEB SECURED TO SAID BODY AND EXTENDING THEREFROM, SAID FLEXIBLE WEB BEING FORMED UPON ITSELF TO FORM A BIGHT AND EXTENDING BETWEEN SAID BODY AND SAID PLANAR SURFACE AND TERMINATING IN SAID RETAINER MEANS, SAID WEB HAVING SUFFICIENT STIFFNESS TO MAINTAIN A U CONFIGURATION WITH THE BIGHT PORTION THEREOF ENGAGING SAID THRESHOLD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |