Patent US3312488A successfully refreshed from Google Patents.
US3312488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion joint and locking connection for supporting grid systems
Assignee: LICKLITER
•
Filing: 1964-04-14
•
Granted: 1967-04-04
•
Expires: 1984-04-14
Abstract
No abstract record available.
Inventors
- 👤 Robert P Lickliter
- 👤 Abbott Earl
- 👤 John F Reeves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:59
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/067; E04B9/08; E04B9/12; E04B9/122; F; F16; F16B; F16B2200/00; F16B2200/10; Y; Y10; Y10S; Y10S52/00; Y10S52/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A LOCKING CONNECTION FOR SUPPORTING GRID SYSTEMS AND THE LIKE COMPRISING A FIRST SUPPORT MEMBER HAVING A WEB WITH A SLOT THEREIN, A SECOND SUPPORT MEMBER, AND A LOCKING CONNECTOR EXTENDING FROM SAID SECOND SUPPORT MEMBER FOR INSERTION THROUGH SAID SLOT, SAID LOCKING CONNECTOR INCLUDING A STOP SHOULDER ENGAGING AGAINST ONE SIDE OF SAID WEB AND A RESILIENTLY YIELDABLE LOCKING PART YIELDABLY CAMMING AGAINST AN EDGE OF SAID SLOT UPON INSERTION THROUGH SAID SLOT AND SNAPPING BACK TO ENGAGE
Claim 2
Dependent Claim
79 words
A LOCKING CONNECTION FOR SUPPORTING GRID SYSTEMS AND THE LIKE COMPRISING A FIRST SUPPORT MEMBER HAVING A WEB WITH A SLOT THEREIN, A SECOND SUPPORT MEMBER, AND A LOCKING CONNECTOR EXTENDING FROM SAID SECOND SUPPORT MEMBER FOR INSERTION THROUGH SAID SLOT, SAID LOCKING CONNECTOR INCLUDING A STOP SHOULDER ENGAGING AGAINST ONE SIDE OF SAID WEB AND A RESILIENTLY YIELDABLE LOCKING PART YIELDABLY CAMMING AGAINST AN EDGE OF SAID SLOT UPON INSERTION THROUGH SAID SLOT AND SNAPPING BACK TO ENGAGE
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) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |