Patent US3279009A successfully refreshed from Google Patents.
US3279009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyholders
Assignee: Airco Inc
•
Filing: 1964-08-03
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Granted: 1966-10-18
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Expires: 1984-08-03
Abstract
No abstract record available.
Inventors
- 👤 Deane Richard Teasdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:33
CPC Classifications
A; A45; A45F; A45F5/00; A45F5/02; A45F5/1558; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1379; Y10T24/1394
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A KEYHOLDER OF THE TYPE WHEREIN THE KEY IS RETAINED IN A COMPARTMENT BY BEING GRIPPED THEREIN COMPRISING; A U-SHAPED SPRING OF RESILIENT STRIP MATERIAL DEFINING A CLIP HAVING A FIRST LIMB AND A SECOND LIMB, FLANGES BEING PROVIDED ON SAID SECOND LIMB AT THE EDGES THEREOF EXTENDING TOWARDS SAID FIRST LIMB OVER SUBSTANTIALLY THE MAJOR PORTION OF THE LENGTH OF SAID FIRST LIMB AND CLOSING THE OPEN SIDES OF THE CLIP, A PIN MOUNTED AXIALLY OF THE BEND OF THE CLIP AND LOCATED IN APERTURES IN SAID FLANGES, AND A LEAF MOUNTED ON SAID PIN AND LYING BETWEEN SAID FIRST AND SECOND LIMBS DEFINING WITH SAID FIRST AND SECOND LIMBS, TWO COMPARTMENTS.
Claim 2
Dependent Claim
113 words
A KEYHOLDER OF THE TYPE WHEREIN THE KEY IS RETAINED IN A COMPARTMENT BY BEING GRIPPED THEREIN COMPRISING; A U-SHAPED SPRING OF RESILIENT STRIP MATERIAL DEFINING A CLIP HAVING A FIRST LIMB AND A SECOND LIMB, FLANGES BEING PROVIDED ON SAID SECOND LIMB AT THE EDGES THEREOF EXTENDING TOWARDS SAID FIRST LIMB OVER SUBSTANTIALLY THE MAJOR PORTION OF THE LENGTH OF SAID FIRST LIMB AND CLOSING THE OPEN SIDES OF THE CLIP, A PIN MOUNTED AXIALLY OF THE BEND OF THE CLIP AND LOCATED IN APERTURES IN SAID FLANGES, AND A LEAF MOUNTED ON SAID PIN AND LYING BETWEEN SAID FIRST AND SECOND LIMBS DEFINING WITH SAID FIRST AND SECOND LIMBS, TWO COMPARTMENTS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |