Patent US3261139A successfully refreshed from Google Patents.
US3261139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple glazed unit
Assignee: POLARPANE CORP
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Filing: 1964-05-14
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Granted: 1966-07-19
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Expires: 1984-05-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:00
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66342; E06B3/66352
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A MULTIPLE GLAZED UNIT COMPRISING A PLURALITY OF SPACED-APART GLASS SHEETS, A SPACER ELEMENT SEPARATING THE GLASS SHEETS AT THEIR MARGINAL EDGES TO FORM A DEAD AIR SPACE BETWEEN THE GLASS SHEETS, SAID SPACER ELEMENT HAVING AN INNER WALL AND OUTER WALL CONNECTED TOGETHER BY SIDEWALLS, SAID SPACER ELEMENT HAVING A LONGITUDINAL GROOVE FORMED IN EACH OF ITS SIDEWALLS, A RESILIENT TAPE HAVING A FLAT PORTION POSITIONED BETWEEN THE SIDEWALL AND THE GLASS KEYED TO SAID GROOVE BY A KEY MEMBER EXTAPE BEING KEYED TO SAID GROOVE BYA KEY MEMBER EXTENDING FROM SAID FLAT PORTION AND SEATED IS SAID GROOVE, AND A U-SHAPED CHANNEL MEMBER SURROUNDING THE EDGES OF SAID GLAZED UNIT, EACH GROOVE BEING PROVIDED WITH AN ENTRANCE SLOT FORMED BY OPPOSED ENTRANCE SHOULDERS, SAID SLOT BEING NARROWER THAN THE DIAMETER OF THE GROOVE, AND SAID KEY MEMBER INCLUDING A NECK PORTION AND A HEAD POR-
Claim 2
Dependent Claim
147 words
A MULTIPLE GLAZED UNIT COMPRISING A PLURALITY OF SPACED-APART GLASS SHEETS, A SPACER ELEMENT SEPARATING THE GLASS SHEETS AT THEIR MARGINAL EDGES TO FORM A DEAD AIR SPACE BETWEEN THE GLASS SHEETS, SAID SPACER ELEMENT HAVING AN INNER WALL AND OUTER WALL CONNECTED TOGETHER BY SIDEWALLS, SAID SPACER ELEMENT HAVING A LONGITUDINAL GROOVE FORMED IN EACH OF ITS SIDEWALLS, A RESILIENT TAPE HAVING A FLAT PORTION POSITIONED BETWEEN THE SIDEWALL AND THE GLASS KEYED TO SAID GROOVE BY A KEY MEMBER EXTAPE BEING KEYED TO SAID GROOVE BYA KEY MEMBER EXTENDING FROM SAID FLAT PORTION AND SEATED IS SAID GROOVE, AND A U-SHAPED CHANNEL MEMBER SURROUNDING THE EDGES OF SAID GLAZED UNIT, EACH GROOVE BEING PROVIDED WITH AN ENTRANCE SLOT FORMED BY OPPOSED ENTRANCE SHOULDERS, SAID SLOT BEING NARROWER THAN THE DIAMETER OF THE GROOVE, AND SAID KEY MEMBER INCLUDING A NECK PORTION AND A HEAD POR-
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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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |