US3250041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door structures
Assignee: Dorplastex AG
•
Filing: 1963-08-27
•
Granted: 1966-05-10
•
Expires: 1983-08-27
Abstract
No abstract record available.
Inventors
- 👤 Anger Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:52
CPC Classifications
B; B29; B29C; B29C66/00; B29C44/00; B29C44/02; B29C44/12; B29C66/70; B29C66/72; B29C66/727; E; E06; E06B; E06B1/00; E06B1/04; E06B1/32; E06B1/52; E06B3/00; E06B3/70; E06B3/82; E06B3/86; B29C66/71; B29K; B29K2105/00; B29K2105/06; Y; Y10; Y10S; Y10S49/00; Y10S49/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
DOOR STRUCTURE COMPRISING A CORE PANEL OF PLASTIC FOAM, SHEETS OF SOLID PLASTIC THINNER THAN SAID FOAM CORE COVERING AT LEAST THE GREATER PART OF ITS FRONT AND REAR
Claim 2
Dependent Claim
29 words
DOOR STRUCTURE COMPRISING A CORE PANEL OF PLASTIC FOAM, SHEETS OF SOLID PLASTIC THINNER THAN SAID FOAM CORE COVERING AT LEAST THE GREATER PART OF ITS FRONT AND REAR
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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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |