US3213573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible and retractable member
Assignee: ATK Launch Systems LLC
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Filing: 1962-07-12
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Granted: 1965-10-26
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Expires: 1982-07-12
Abstract
No abstract record available.
Inventors
- 👤 Alexander H Bohr
- 👤 Walter O Borcherdt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:43
CPC Classifications
F; F16; F16H; F16H19/00; F16H19/02; F16H19/06; F16H19/064; B; B21; B21C; B21C37/00; B21C37/06; B21C37/10; E; E04; E04C; E04C3/00; E04C3/005; H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1235; Y; Y10; Y10S; Y10S174/00; Y10S174/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
AN EXTENSIBLE MEMBER FOR USE A S A BOOM, ETC. COMPRISING, IN COMBINATION, A PLURALITY OF SEPARATE IDENTICAL STRIPS EACH HAVING A PLURALITY OF ALTERNATE INTERLOCKABLE DOVETAIL SHAPED TONGUES AND SLOTS FORMED ALONG ITS EDGES, WITH THE MINIMUM WIDTH OF SAID TONGUES BEING GREATER THAN THE MINIMUM WIDTH OF SAID SLOTS AND MEANS FOR SIMULTANEOUSLY GUIDING AN EQUAL PORTION OF EACH OF SAID
Claim 2
Dependent Claim
63 words
AN EXTENSIBLE MEMBER FOR USE A S A BOOM, ETC. COMPRISING, IN COMBINATION, A PLURALITY OF SEPARATE IDENTICAL STRIPS EACH HAVING A PLURALITY OF ALTERNATE INTERLOCKABLE DOVETAIL SHAPED TONGUES AND SLOTS FORMED ALONG ITS EDGES, WITH THE MINIMUM WIDTH OF SAID TONGUES BEING GREATER THAN THE MINIMUM WIDTH OF SAID SLOTS AND MEANS FOR SIMULTANEOUSLY GUIDING AN EQUAL PORTION OF EACH OF SAID
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |