US3487133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making relief maps
Assignee: Individual
•
Filing: 1967-02-20
•
Granted: 1969-12-30
•
Expires: 1987-02-20
Abstract
No abstract record available.
Inventors
- 👤 John Lindsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:46
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/12; B; B29; B29C; B29C33/00; B29C33/0011; B29C33/38; B29C33/3842; B29C35/00; B29C35/02; B29C35/0266; B29C51/00; B29C51/08; B29C67/00; B29C67/0011; B29L; B29L2031/00; B29L2031/40
Claims Analysis
Total Claims: 0
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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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |