Patent US3498587A successfully refreshed from Google Patents.
US3498587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible protective enclosure
Assignee: Individual
•
Filing: 1968-09-09
•
Granted: 1970-03-03
•
Expires: 1988-09-09
Abstract
No abstract record available.
Inventors
- 👤 Samuel Friedberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:25
CPC Classifications
E; E04; E04H; E04H1/00; E04H1/12; E04H15/00; E04H15/003; E04H15/005; E04H15/008; Y; Y10; Y10S; Y10S5/00; Y10S5/938
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1669484A
Cited
US2672273A
Cited
US2674400A
Cited
US2736486A
Cited
US2950484A
Cited
US3186473A
Cited
US3187761A
Cited
US3336608A
Cited
US3355081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |