US3300901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door body
Assignee: ECKEL INDUSTRIES Inc
•
Filing: 1964-08-18
•
Granted: 1967-01-31
•
Expires: 1984-08-18
Abstract
No abstract record available.
Inventors
- 👤 Oliver C Eckel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:44
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/70; E06B3/80
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
A DOOR BODY HAVING AN INTERMEDIATE WINDOW PORTION AND COMPRISING TWO CORRUGATED CORES OF RELATIVELY FIRM AND RESILIENT MATERIAL EACH HAVING FURROWS WHICH ARE RESPECTIVELY OPPOSITE AND ADJACENT EACH OTHER, A FLAT SHEET EXTENDING BETWEEN SAID CORES, MEANS CONNECTING SAID FLAT SHEET AND SAID CORES AT SAID OPPOSITELY DISPOSED FURROWS, AN OUTER COVER AT THE FRONT AND REAR FACES OF SAID BODY, NON-RIGID MATERIAL BETWEEN SAID CORES AND COVER, AND SAID CORES TERMINATING LATERALLY ADJACENT OPPOSITE SIDE EXTREMITIES OF SAID WINDOW PORTION AND EXTENDING BEYOND SAID FLAT SHEET, A SEPARATE TRANSPARENT FLAT SHEET FORMING AND EXTENDING BEYOND SAID WINDOW PORTION AND BETWEEN SAID CORES, AND REMOVABLE MEANS ATTACHING SAID TRANSPARENT FLAT SHEET TO SAID CORES AT BORDER PORTIONS OF SAID LATTER SHEET.
References Cited (Backward Citations)
US378359A
Cited
US2923963A
Cited
US977366A
Cited
US1625061A
Cited
US1895553A
Cited
US2688164A
Cited
FR1139986A
Cited
US2924861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |